31131304114 has 4 divisors (see below), whose sum is σ = 46696956174. Its totient is φ = 15565652056.

The previous prime is 31131304093. The next prime is 31131304159. The reversal of 31131304114 is 41140313113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41140313113 = 811 ⋅50727883.

It can be written as a sum of positive squares in only one way, i.e., 22600010889 + 8531293225 = 150333^2 + 92365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7782826027 + ... + 7782826030.

Almost surely, 2^31131304114 is an apocalyptic number.

31131304114 is a deficient number, since it is larger than the sum of its proper divisors (15565652060).

31131304114 is a wasteful number, since it uses less digits than its factorization.

31131304114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15565652059.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31131304114 its reverse (41140313113), we get a palindrome (72271617227).

The spelling of 31131304114 in words is "thirty-one billion, one hundred thirty-one million, three hundred four thousand, one hundred fourteen".