31100231120 has 80 divisors (see below), whose sum is σ = 87498828288. Its totient is φ = 10035701760.

The previous prime is 31100231117. The next prime is 31100231161. The reversal of 31100231120 is 2113200113.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 31100231095 and 31100231104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1623896 + ... + 1642935.

Almost surely, 2^31100231120 is an apocalyptic number.

It is an amenable number.

31100231120 is an abundant number, since it is smaller than the sum of its proper divisors (56398597168).

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

31100231120 is a wasteful number, since it uses less digits than its factorization.

31100231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266868 (or 3266862 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31100231120 its reverse (2113200113), we get a palindrome (33213431233).

The spelling of 31100231120 in words is "thirty-one billion, one hundred million, two hundred thirty-one thousand, one hundred twenty".