31031411242 has 12 divisors (see below), whose sum is σ = 50403091590. Its totient is φ = 14322189648.

The previous prime is 31031411237. The next prime is 31031411251. The reversal of 31031411242 is 24211413013.

It can be written as a sum of positive squares in 3 ways, for example, as 21103082361 + 9928328881 = 145269^2 + 99641^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45904117 + ... + 45904792.

Almost surely, 2^31031411242 is an apocalyptic number.

31031411242 is a deficient number, since it is larger than the sum of its proper divisors (19371680348).

31031411242 is a wasteful number, since it uses less digits than its factorization.

31031411242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91808937 (or 91808924 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 31031411242 its reverse (24211413013), we get a palindrome (55242824255).

The spelling of 31031411242 in words is "thirty-one billion, thirty-one million, four hundred eleven thousand, two hundred forty-two".