31033231230012 has 72 divisors (see below), whose sum is σ = 83052643352448. Its totient is φ = 8995139477280.

The previous prime is 31033231230007. The next prime is 31033231230037. The reversal of 31033231230012 is 21003213233013.

It is a super-2 number, since 2×31033231230012² (a number of 28 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 464591578 + ... + 464658369.

Almost surely, 2^{31033231230012} is an apocalyptic number.

It is an amenable number.

31033231230012 is an abundant number, since it is smaller than the sum of its proper divisors (52019412122436).

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

31033231230012 is a wasteful number, since it uses less digits than its factorization.

31033231230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929249999 (or 929249986 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31033231230012 its reverse (21003213233013), we get a palindrome (52036444463025).

The spelling of 31033231230012 in words is "thirty-one trillion, thirty-three billion, two hundred thirty-one million, two hundred thirty thousand, twelve".