2031698923 has 2 divisors, whose sum is σ = 2031698924. Its totient is φ = 2031698922.

The previous prime is 2031698909. The next prime is 2031698947. The reversal of 2031698923 is 3298961302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2031698923 - 2⁵ = 2031698891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2031698923.

It is not a weakly prime, because it can be changed into another prime (2031698023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015849461 + 1015849462.

It is an arithmetic number, because the mean of its divisors is an integer number (1015849462).

Almost surely, 2^2031698923 is an apocalyptic number.

2031698923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031698923 is an equidigital number, since it uses as much as digits as its factorization.

2031698923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2031698923 is about 45074.3710216793. The cubic root of 2031698923 is about 1266.5425464790.

The spelling of 2031698923 in words is "two billion, thirty-one million, six hundred ninety-eight thousand, nine hundred twenty-three".