31010032242 has 24 divisors (see below), whose sum is σ = 76786746816. Its totient is φ = 8860009176.

The previous prime is 31010032237. The next prime is 31010032267. The reversal of 31010032242 is 24223001013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123055558 + ... + 123055809.

It is an arithmetic number, because the mean of its divisors is an integer number (3199447784).

Almost surely, 2^31010032242 is an apocalyptic number.

31010032242 is an abundant number, since it is smaller than the sum of its proper divisors (45776714574).

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

31010032242 is a wasteful number, since it uses less digits than its factorization.

31010032242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246111382 (or 246111379 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31010032242 its reverse (24223001013), we get a palindrome (55233033255).

The spelling of 31010032242 in words is "thirty-one billion, ten million, thirty-two thousand, two hundred forty-two".