31133011210120 has 16 divisors (see below), whose sum is σ = 70049275222860. Its totient is φ = 12453204484032.

The previous prime is 31133011210069. The next prime is 31133011210121. The reversal of 31133011210120 is 2101211033113.

It can be written as a sum of positive squares in 2 ways, for example, as 26464378077316 + 4668633132804 = 5144354^2 + 2160702^2 .

It is not an unprimeable number, because it can be changed into a prime (31133011210121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389162640087 + ... + 389162640166.

Almost surely, 2^{31133011210120} is an apocalyptic number.

It is an amenable number.

31133011210120 is an abundant number, since it is smaller than the sum of its proper divisors (38916264012740).

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

31133011210120 is a wasteful number, since it uses less digits than its factorization.

31133011210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778325280264 (or 778325280260 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31133011210120 its reverse (2101211033113), we get a palindrome (33234222243233).

The spelling of 31133011210120 in words is "thirty-one trillion, one hundred thirty-three billion, eleven million, two hundred ten thousand, one hundred twenty".