31101122432 has 16 divisors (see below), whose sum is σ = 61959267600. Its totient is φ = 15550561152.

The previous prime is 31101122387. The next prime is 31101122473. The reversal of 31101122432 is 23422110113.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 121488632 + ... + 121488887.

It is an arithmetic number, because the mean of its divisors is an integer number (3872454225).

Almost surely, 2^31101122432 is an apocalyptic number.

31101122432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31101122432 is a deficient number, since it is larger than the sum of its proper divisors (30858145168).

31101122432 is an equidigital number, since it uses as much as digits as its factorization.

31101122432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242977533 (or 242977521 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31101122432 its reverse (23422110113), we get a palindrome (54523232545).

The spelling of 31101122432 in words is "thirty-one billion, one hundred one million, one hundred twenty-two thousand, four hundred thirty-two".