31301033000131 has 2 divisors, whose sum is σ = 31301033000132. Its totient is φ = 31301033000130.

The previous prime is 31301033000099. The next prime is 31301033000137. The reversal of 31301033000131 is 13100033010313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31301033000131 - 2⁵ = 31301033000099 is a prime.

It is a super-2 number, since 2×31301033000131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31301033000099 and 31301033000108.

It is not a weakly prime, because it can be changed into another prime (31301033000137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650516500065 + 15650516500066.

It is an arithmetic number, because the mean of its divisors is an integer number (15650516500066).

Almost surely, 2^{31301033000131} is an apocalyptic number.

31301033000131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31301033000131 is an equidigital number, since it uses as much as digits as its factorization.

31301033000131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 31301033000131 its reverse (13100033010313), we get a palindrome (44401066010444).

The spelling of 31301033000131 in words is "thirty-one trillion, three hundred one billion, thirty-three million, one hundred thirty-one", and thus it is an aban number.