2031130399 has 2 divisors, whose sum is σ = 2031130400. Its totient is φ = 2031130398.

The previous prime is 2031130379. The next prime is 2031130421. The reversal of 2031130399 is 9930311302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2031130399 - 2¹³ = 2031122207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2031130399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031130349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015565199 + 1015565200.

It is an arithmetic number, because the mean of its divisors is an integer number (1015565200).

Almost surely, 2^2031130399 is an apocalyptic number.

2031130399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031130399 is an equidigital number, since it uses as much as digits as its factorization.

2031130399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 2031130399 is about 45068.0640698045. The cubic root of 2031130399 is about 1266.4243979022.

The spelling of 2031130399 in words is "two billion, thirty-one million, one hundred thirty thousand, three hundred ninety-nine".