13937718323231 has 2 divisors, whose sum is σ = 13937718323232. Its totient is φ = 13937718323230.

The previous prime is 13937718323213. The next prime is 13937718323261. The reversal of 13937718323231 is 13232381773931.

Together with previous prime (13937718323213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13937718323231 - 2⁶ = 13937718323167 is a prime.

It is a super-2 number, since 2×13937718323231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13937718323261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968859161615 + 6968859161616.

It is an arithmetic number, because the mean of its divisors is an integer number (6968859161616).

Almost surely, 2^{13937718323231} is an apocalyptic number.

13937718323231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13937718323231 is an equidigital number, since it uses as much as digits as its factorization.

13937718323231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 53.

The spelling of 13937718323231 in words is "thirteen trillion, nine hundred thirty-seven billion, seven hundred eighteen million, three hundred twenty-three thousand, two hundred thirty-one".