31102059042 has 24 divisors (see below), whose sum is σ = 67395332316. Its totient is φ = 10366193376.

The previous prime is 31102059041. The next prime is 31102059047. The reversal of 31102059042 is 24095020113.

31102059042 is a `hidden beast` number, since 3 + 1 + 10 + 20 + 590 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30913024041 + 189035001 = 175821^2 + 13749^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31102058997 and 31102059015.

It is not an unprimeable number, because it can be changed into a prime (31102059041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77208 + ... + 261084.

Almost surely, 2^31102059042 is an apocalyptic number.

31102059042 is an abundant number, since it is smaller than the sum of its proper divisors (36293273274).

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

31102059042 is a wasteful number, since it uses less digits than its factorization.

31102059042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193282 (or 193279 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 31102059042 its reverse (24095020113), we get a palindrome (55197079155).

The spelling of 31102059042 in words is "thirty-one billion, one hundred two million, fifty-nine thousand, forty-two".