31512412142 has 16 divisors (see below), whose sum is σ = 49280497200. Its totient is φ = 15099407232.

The previous prime is 31512412123. The next prime is 31512412153. The reversal of 31512412142 is 24121421513.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3452267 + ... + 3461382.

It is an arithmetic number, because the mean of its divisors is an integer number (3080031075).

Almost surely, 2^31512412142 is an apocalyptic number.

31512412142 is a deficient number, since it is larger than the sum of its proper divisors (17768085058).

31512412142 is a wasteful number, since it uses less digits than its factorization.

31512412142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913747.

The product of its digits is 1920, while the sum is 26.

Adding to 31512412142 its reverse (24121421513), we get a palindrome (55633833655).

The spelling of 31512412142 in words is "thirty-one billion, five hundred twelve million, four hundred twelve thousand, one hundred forty-two".