31033130112031 has 2 divisors, whose sum is σ = 31033130112032. Its totient is φ = 31033130112030.

The previous prime is 31033130112001. The next prime is 31033130112041. The reversal of 31033130112031 is 13021103133013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31033130112031 - 2⁹ = 31033130111519 is a prime.

It is a super-2 number, since 2×31033130112031² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31033130111993 and 31033130112011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31033130112001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516565056015 + 15516565056016.

It is an arithmetic number, because the mean of its divisors is an integer number (15516565056016).

Almost surely, 2^{31033130112031} is an apocalyptic number.

31033130112031 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033130112031 is an equidigital number, since it uses as much as digits as its factorization.

31033130112031 is an evil number, because the sum of its binary digits is even.

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

Adding to 31033130112031 its reverse (13021103133013), we get a palindrome (44054233245044).

The spelling of 31033130112031 in words is "thirty-one trillion, thirty-three billion, one hundred thirty million, one hundred twelve thousand, thirty-one".