31013132103031 has 16 divisors (see below), whose sum is σ = 33720709446144. Its totient is φ = 28351944681984.

The previous prime is 31013132103013. The next prime is 31013132103059. The reversal of 31013132103031 is 13030123131013.

It is a cyclic number.

It is not a de Polignac number, because 31013132103031 - 2⁵ = 31013132102999 is a prime.

It is a super-2 number, since 2×31013132103031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31013132102993 and 31013132103011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013132103131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6390231 + ... + 10142056.

It is an arithmetic number, because the mean of its divisors is an integer number (2107544340384).

Almost surely, 2^{31013132103031} is an apocalyptic number.

31013132103031 is a deficient number, since it is larger than the sum of its proper divisors (2707577343113).

31013132103031 is a wasteful number, since it uses less digits than its factorization.

31013132103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16533690.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31013132103031 its reverse (13030123131013), we get a palindrome (44043255234044).

The spelling of 31013132103031 in words is "thirty-one trillion, thirteen billion, one hundred thirty-two million, one hundred three thousand, thirty-one".