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1331301220230 = 235257259166643
BaseRepresentation
bin10011010111110111101…
…111000111111110000110
311201021022200010012012010
4103113313233013332012
5133303001103021410
62455331421235050
7165116612442252
oct23276757077606
94637280105163
101331301220230
11473668917243
12196022102a86
1398705c33a27
1448614751262
152496bdd0c20
hex135f7bc7f86

1331301220230 has 64 divisors (see below), whose sum is σ = 3208841422848. Its totient is φ = 353490493440.

The previous prime is 1331301220217. The next prime is 1331301220259. The reversal of 1331301220230 is 320221031331.

It is a super-2 number, since 2×13313012202302 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331301220197 and 1331301220206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19943289 + ... + 20009931.

It is an arithmetic number, because the mean of its divisors is an integer number (50138147232).

Almost surely, 21331301220230 is an apocalyptic number.

1331301220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331301220230 is an abundant number, since it is smaller than the sum of its proper divisors (1877540202618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331301220230 is a wasteful number, since it uses less digits than its factorization.

1331301220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69501.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1331301220230 its reverse (320221031331), we get a palindrome (1651522251561).

The spelling of 1331301220230 in words is "one trillion, three hundred thirty-one billion, three hundred one million, two hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 257 514 771 1285 1542 2570 2591 3855 5182 7710 7773 12955 15546 25910 38865 66643 77730 133286 199929 333215 399858 665887 666430 999645 1331774 1997661 1999290 3329435 3995322 6658870 9988305 17127251 19976610 34254502 51381753 85636255 102763506 171272510 172672013 256908765 345344026 513817530 518016039 863360065 1036032078 1726720130 2590080195 5180160390 44376707341 88753414682 133130122023 221883536705 266260244046 443767073410 665650610115 1331301220230