31031310104 has 16 divisors (see below), whose sum is σ = 60190041600. Its totient is φ = 14980632352.

The previous prime is 31031310091. The next prime is 31031310113. The reversal of 31031310104 is 40101313013.

It is a super-2 number, since 2×31031310104² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 66877592 + ... + 66878055.

It is an arithmetic number, because the mean of its divisors is an integer number (3761877600).

Almost surely, 2^31031310104 is an apocalyptic number.

It is an amenable number.

31031310104 is a deficient number, since it is larger than the sum of its proper divisors (29158731496).

31031310104 is a wasteful number, since it uses less digits than its factorization.

31031310104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133755682 (or 133755678 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31031310104 its reverse (40101313013), we get a palindrome (71132623117).

The spelling of 31031310104 in words is "thirty-one billion, thirty-one million, three hundred ten thousand, one hundred four".