31120030000012 has 24 divisors (see below), whose sum is σ = 54468365124096. Its totient is φ = 15557640204288.

The previous prime is 31120029999977. The next prime is 31120030000013. The reversal of 31120030000012 is 21000003002113.

It is a junction number, because it is equal to n+sod(n) for n = 31120029999947 and 31120030000001.

It is not an unprimeable number, because it can be changed into a prime (31120030000013) 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, 1335783948 + ... + 1335807244.

It is an arithmetic number, because the mean of its divisors is an integer number (2269515213504).

Almost surely, 2^{31120030000012} is an apocalyptic number.

It is an amenable number.

31120030000012 is a deficient number, since it is larger than the sum of its proper divisors (23348335124084).

31120030000012 is a wasteful number, since it uses less digits than its factorization.

31120030000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59937 (or 59935 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31120030000012 its reverse (21000003002113), we get a palindrome (52120033002125).

The spelling of 31120030000012 in words is "thirty-one trillion, one hundred twenty billion, thirty million, twelve", and thus it is an aban number.