31841335997 has 2 divisors, whose sum is σ = 31841335998. Its totient is φ = 31841335996.

The previous prime is 31841335957. The next prime is 31841336057. The reversal of 31841335997 is 79953314813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30224170201 + 1617165796 = 173851^2 + 40214^2 .

It is a cyclic number.

It is not a de Polignac number, because 31841335997 - 2⁸ = 31841335741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31841335927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15920667998 + 15920667999.

It is an arithmetic number, because the mean of its divisors is an integer number (15920667999).

Almost surely, 2^31841335997 is an apocalyptic number.

It is an amenable number.

31841335997 is a deficient number, since it is larger than the sum of its proper divisors (1).

31841335997 is an equidigital number, since it uses as much as digits as its factorization.

31841335997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The spelling of 31841335997 in words is "thirty-one billion, eight hundred forty-one million, three hundred thirty-five thousand, nine hundred ninety-seven".