2131023199 has 4 divisors (see below), whose sum is σ = 2131131600. Its totient is φ = 2130914800.

The previous prime is 2131023187. The next prime is 2131023217. The reversal of 2131023199 is 9913201312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2131023199 - 2¹⁹ = 2130498911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131023199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131023149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15502 + ... + 67099.

It is an arithmetic number, because the mean of its divisors is an integer number (532782900).

Almost surely, 2^2131023199 is an apocalyptic number.

2131023199 is a deficient number, since it is larger than the sum of its proper divisors (108401).

2131023199 is an equidigital number, since it uses as much as digits as its factorization.

2131023199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108400.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 2131023199 is about 46163.0068236461. The cubic root of 2131023199 is about 1286.8543428604.

The spelling of 2131023199 in words is "two billion, one hundred thirty-one million, twenty-three thousand, one hundred ninety-nine".