31111030112 has 48 divisors (see below), whose sum is σ = 62013524832. Its totient is φ = 15362764800.

The previous prime is 31111030057. The next prime is 31111030123. The reversal of 31111030112 is 21103011113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817328 + ... + 854544.

It is an arithmetic number, because the mean of its divisors is an integer number (1291948434).

Almost surely, 2^31111030112 is an apocalyptic number.

31111030112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31111030112 is a deficient number, since it is larger than the sum of its proper divisors (30902494720).

31111030112 is a wasteful number, since it uses less digits than its factorization.

31111030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37551 (or 37543 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 31111030112 its reverse (21103011113), we get a palindrome (52214041225).

The spelling of 31111030112 in words is "thirty-one billion, one hundred eleven million, thirty thousand, one hundred twelve".