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12311032101 = 38394891153
BaseRepresentation
bin10110111011100101…
…10111000100100101
31011202222101020011220
423131302313010211
5200203111011401
65353340050553
7614036021604
oct133562670445
934688336156
1012311032101
1152482906a5
122476b33a59
131212725ba4
1484b063a3b
154c0c0d336
hex2ddcb7125

12311032101 has 8 divisors (see below), whose sum is σ = 16434277440. Its totient is φ = 8197570752.

The previous prime is 12311032081. The next prime is 12311032127. The reversal of 12311032101 is 10123011321.

Adding to 12311032101 its reverse (10123011321), we get a palindrome (22434043422).

It is a happy number.

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

It is not a de Polignac number, because 12311032101 - 27 = 12311031973 is a prime.

It is a super-2 number, since 2×123110321012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311034101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2443060 + ... + 2448093.

It is an arithmetic number, because the mean of its divisors is an integer number (2054284680).

Almost surely, 212311032101 is an apocalyptic number.

It is an amenable number.

12311032101 is a deficient number, since it is larger than the sum of its proper divisors (4123245339).

12311032101 is an equidigital number, since it uses as much as digits as its factorization.

12311032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4891995.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 12311032101 in words is "twelve billion, three hundred eleven million, thirty-two thousand, one hundred one".

Divisors: 1 3 839 2517 4891153 14673459 4103677367 12311032101