31442122312 has 16 divisors (see below), whose sum is σ = 60391881900. Its totient is φ = 15337620480.

The previous prime is 31442122289. The next prime is 31442122337. The reversal of 31442122312 is 21322124413.

It can be written as a sum of positive squares in 2 ways, for example, as 31338204676 + 103917636 = 177026^2 + 10194^2 .

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, 47929737 + ... + 47930392.

Almost surely, 2^31442122312 is an apocalyptic number.

It is an amenable number.

31442122312 is a deficient number, since it is larger than the sum of its proper divisors (28949759588).

31442122312 is a wasteful number, since it uses less digits than its factorization.

31442122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95860176 (or 95860172 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 31442122312 its reverse (21322124413), we get a palindrome (52764246725).

The spelling of 31442122312 in words is "thirty-one billion, four hundred forty-two million, one hundred twenty-two thousand, three hundred twelve".