31042100552 has 16 divisors (see below), whose sum is σ = 58205976300. Its totient is φ = 15520506880.

The previous prime is 31042100549. The next prime is 31042100561. The reversal of 31042100552 is 25500124013.

It can be written as a sum of positive squares in 2 ways, for example, as 30333795556 + 708304996 = 174166^2 + 26614^2 .

It is a super-2 number, since 2×31042100552² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279224 + ... + 374232.

Almost surely, 2^31042100552 is an apocalyptic number.

It is an amenable number.

31042100552 is a deficient number, since it is larger than the sum of its proper divisors (27163875748).

31042100552 is a wasteful number, since it uses less digits than its factorization.

31042100552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135856 (or 135852 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 31042100552 its reverse (25500124013), we get a palindrome (56542224565).

The spelling of 31042100552 in words is "thirty-one billion, forty-two million, one hundred thousand, five hundred fifty-two".