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31301211131323 = 723194417460443
BaseRepresentation
bin1110001110111111000011…
…00100100000110110111011
311002211100220020000001112221
413013133201210200312323
513100314340022200243
6150323324453344511
76410303122456660
oct707374144406673
9132740806001487
1031301211131323
119a78850732121
123616474338137
1314608cb427633
147a2db5721a67
1539433a1d7bed
hex1c77e1920dbb

31301211131323 has 8 divisors (see below), whose sum is σ = 37328152405248. Its totient is φ = 25663104778344.

The previous prime is 31301211131293. The next prime is 31301211131329. The reversal of 31301211131323 is 32313111210313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31301211131323 - 213 = 31301211123131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31301211131329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97208730061 + ... + 97208730382.

It is an arithmetic number, because the mean of its divisors is an integer number (4666019050656).

Almost surely, 231301211131323 is an apocalyptic number.

31301211131323 is a deficient number, since it is larger than the sum of its proper divisors (6026941273925).

31301211131323 is a wasteful number, since it uses less digits than its factorization.

31301211131323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194417460473.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31301211131323 its reverse (32313111210313), we get a palindrome (63614322341636).

The spelling of 31301211131323 in words is "thirty-one trillion, three hundred one billion, two hundred eleven million, one hundred thirty-one thousand, three hundred twenty-three".

Divisors: 1 7 23 161 194417460443 1360922223101 4471601590189 31301211131323