31120002033012 has 18 divisors (see below), whose sum is σ = 78664449583538. Its totient is φ = 10373334010992.

The previous prime is 31120002032969. The next prime is 31120002033031. The reversal of 31120002033012 is 21033020002113.

31120002033012 is a `hidden beast` number, since 311 + 2 + 0 + 0 + 0 + 20 + 330 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29443277459556 + 1676724573456 = 5426166^2 + 1294884^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432222250423 + ... + 432222250494.

Almost surely, 2^{31120002033012} is an apocalyptic number.

It is an amenable number.

31120002033012 is an abundant number, since it is smaller than the sum of its proper divisors (47544447550526).

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

31120002033012 is a wasteful number, since it uses less digits than its factorization.

31120002033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864444500927 (or 864444500922 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31120002033012 its reverse (21033020002113), we get a palindrome (52153022035125).

The spelling of 31120002033012 in words is "thirty-one trillion, one hundred twenty billion, two million, thirty-three thousand, twelve".