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331212122130 = 23578427140773
BaseRepresentation
bin1001101000111011100…
…01111110100000010010
31011122220202001010002110
410310131301332200102
520411310300402010
6412053505130150
732633513405061
oct4643561764022
91148822033073
10331212122130
1111851467665a
1254236329956
1325305370926
14120605541d8
15893791a120
hex4d1dc7e812

331212122130 has 32 divisors (see below), whose sum is σ = 794924875584. Its totient is φ = 88321478976.

The previous prime is 331212122083. The next prime is 331212122209. The reversal of 331212122130 is 31221212133.

It is a junction number, because it is equal to n+sod(n) for n = 331212122097 and 331212122106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2282424 + ... + 2423196.

It is an arithmetic number, because the mean of its divisors is an integer number (24841402362).

Almost surely, 2331212122130 is an apocalyptic number.

331212122130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331212122130 is an abundant number, since it is smaller than the sum of its proper divisors (463712753454).

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

331212122130 is a wasteful number, since it uses less digits than its factorization.

331212122130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219210.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 331212122130 its reverse (31221212133), we get a palindrome (362433334263).

The spelling of 331212122130 in words is "three hundred thirty-one billion, two hundred twelve million, one hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 78427 140773 156854 235281 281546 392135 422319 470562 703865 784270 844638 1176405 1407730 2111595 2352810 4223190 11040404071 22080808142 33121212213 55202020355 66242424426 110404040710 165606061065 331212122130