31453535117 has 2 divisors, whose sum is σ = 31453535118. Its totient is φ = 31453535116.

The previous prime is 31453535101. The next prime is 31453535143. The reversal of 31453535117 is 71153535413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26302028041 + 5151507076 = 162179^2 + 71774^2 .

It is a cyclic number.

It is not a de Polignac number, because 31453535117 - 2⁴ = 31453535101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31453535417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15726767558 + 15726767559.

It is an arithmetic number, because the mean of its divisors is an integer number (15726767559).

Almost surely, 2^31453535117 is an apocalyptic number.

It is an amenable number.

31453535117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31453535117 is an equidigital number, since it uses as much as digits as its factorization.

31453535117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94500, while the sum is 38.

The spelling of 31453535117 in words is "thirty-one billion, four hundred fifty-three million, five hundred thirty-five thousand, one hundred seventeen".