2131420039 has 16 divisors (see below), whose sum is σ = 2504851776. Its totient is φ = 1775347200.

The previous prime is 2131420021. The next prime is 2131420073. The reversal of 2131420039 is 9300241312.

It is a cyclic number.

It is not a de Polignac number, because 2131420039 - 2⁹ = 2131419527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131419995 and 2131420022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131420009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223509 + ... + 232849.

It is an arithmetic number, because the mean of its divisors is an integer number (156553236).

Almost surely, 2^2131420039 is an apocalyptic number.

2131420039 is a deficient number, since it is larger than the sum of its proper divisors (373431737).

2131420039 is an equidigital number, since it uses as much as digits as its factorization.

2131420039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10266.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2131420039 is about 46167.3048704383. The cubic root of 2131420039 is about 1286.9342174142.

The spelling of 2131420039 in words is "two billion, one hundred thirty-one million, four hundred twenty thousand, thirty-nine".