31941680941 has 2 divisors, whose sum is σ = 31941680942. Its totient is φ = 31941680940.

The previous prime is 31941680879. The next prime is 31941680989. The reversal of 31941680941 is 14908614913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31928329225 + 13351716 = 178685^2 + 3654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31941680941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31941680891 and 31941680900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31941680041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15970840470 + 15970840471.

It is an arithmetic number, because the mean of its divisors is an integer number (15970840471).

Almost surely, 2^31941680941 is an apocalyptic number.

It is an amenable number.

31941680941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31941680941 is an equidigital number, since it uses as much as digits as its factorization.

31941680941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 31941680941 in words is "thirty-one billion, nine hundred forty-one million, six hundred eighty thousand, nine hundred forty-one".