31131413114 has 4 divisors (see below), whose sum is σ = 46697119674. Its totient is φ = 15565706556.

The previous prime is 31131413101. The next prime is 31131413143. The reversal of 31131413114 is 41131413113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31076401225 + 55011889 = 176285^2 + 7417^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31131413114.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7782853277 + ... + 7782853280.

Almost surely, 2^31131413114 is an apocalyptic number.

31131413114 is a deficient number, since it is larger than the sum of its proper divisors (15565706560).

31131413114 is a wasteful number, since it uses less digits than its factorization.

31131413114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15565706559.

The product of its digits is 432, while the sum is 23.

Adding to 31131413114 its reverse (41131413113), we get a palindrome (72262826227).

Subtracting 31131413114 from its reverse (41131413113), we obtain a palindrome (9999999999).

The spelling of 31131413114 in words is "thirty-one billion, one hundred thirty-one million, four hundred thirteen thousand, one hundred fourteen".