31700313461 has 2 divisors, whose sum is σ = 31700313462. Its totient is φ = 31700313460.

The previous prime is 31700313443. The next prime is 31700313479. The reversal of 31700313461 is 16431300713.

It is a balanced prime because it is at equal distance from previous prime (31700313443) and next prime (31700313479).

It can be written as a sum of positive squares in only one way, i.e., 31226424100 + 473889361 = 176710^2 + 21769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31700313461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31700313401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15850156730 + 15850156731.

It is an arithmetic number, because the mean of its divisors is an integer number (15850156731).

Almost surely, 2^31700313461 is an apocalyptic number.

It is an amenable number.

31700313461 is a deficient number, since it is larger than the sum of its proper divisors (1).

31700313461 is an equidigital number, since it uses as much as digits as its factorization.

31700313461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 31700313461 in words is "thirty-one billion, seven hundred million, three hundred thirteen thousand, four hundred sixty-one".