31200103112 has 32 divisors (see below), whose sum is σ = 59911617600. Its totient is φ = 15228024000.

The previous prime is 31200103079. The next prime is 31200103117. The reversal of 31200103112 is 21130100213.

It is not an unprimeable number, because it can be changed into a prime (31200103117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214562 + ... + 329297.

It is an arithmetic number, because the mean of its divisors is an integer number (1872238050).

Almost surely, 2^31200103112 is an apocalyptic number.

It is an amenable number.

31200103112 is a deficient number, since it is larger than the sum of its proper divisors (28711514488).

31200103112 is a wasteful number, since it uses less digits than its factorization.

31200103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544037 (or 544033 counting only the distinct ones).

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

Adding to 31200103112 its reverse (21130100213), we get a palindrome (52330203325).

The spelling of 31200103112 in words is "thirty-one billion, two hundred million, one hundred three thousand, one hundred twelve".