31110941 has 2 divisors, whose sum is σ = 31110942. Its totient is φ = 31110940.

The previous prime is 31110917. The next prime is 31110943. The reversal of 31110941 is 14901113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 1452025 = 5446^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31110941 is a prime.

It is a Sophie Germain prime.

Together with 31110943, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31110943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15555470 + 15555471.

It is an arithmetic number, because the mean of its divisors is an integer number (15555471).

Almost surely, 2^31110941 is an apocalyptic number.

It is an amenable number.

31110941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31110941 is an equidigital number, since it uses as much as digits as its factorization.

31110941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 31110941 is about 5577.7182610813. The cubic root of 31110941 is about 314.5123587828.

The spelling of 31110941 in words is "thirty-one million, one hundred ten thousand, nine hundred forty-one".