2031320312933 has 2 divisors, whose sum is σ = 2031320312934. Its totient is φ = 2031320312932.

The previous prime is 2031320312929. The next prime is 2031320313019. The reversal of 2031320312933 is 3392130231302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1237649575009 + 793670737924 = 1112497^2 + 890882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031320312933 - 2² = 2031320312929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031320312933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031320362933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015660156466 + 1015660156467.

It is an arithmetic number, because the mean of its divisors is an integer number (1015660156467).

Almost surely, 2^{2031320312933} is an apocalyptic number.

It is an amenable number.

2031320312933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031320312933 is an equidigital number, since it uses as much as digits as its factorization.

2031320312933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 2031320312933 in words is "two trillion, thirty-one billion, three hundred twenty million, three hundred twelve thousand, nine hundred thirty-three".