31052542120 has 16 divisors (see below), whose sum is σ = 69868219860. Its totient is φ = 12421016832.

The previous prime is 31052542111. The next prime is 31052542123. The reversal of 31052542120 is 2124525013.

It can be written as a sum of positive squares in 2 ways, for example, as 30407686884 + 644855236 = 174378^2 + 25394^2 .

It is a super-2 number, since 2×31052542120² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31052542123) 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, 388156737 + ... + 388156816.

Almost surely, 2^31052542120 is an apocalyptic number.

It is an amenable number.

31052542120 is an abundant number, since it is smaller than the sum of its proper divisors (38815677740).

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

31052542120 is a wasteful number, since it uses less digits than its factorization.

31052542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776313564 (or 776313560 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 31052542120 in words is "thirty-one billion, fifty-two million, five hundred forty-two thousand, one hundred twenty".