2131129317 has 12 divisors (see below), whose sum is σ = 2933780096. Its totient is φ = 1374634920.

The previous prime is 2131129313. The next prime is 2131129327. The reversal of 2131129317 is 7139211312.

It is not a de Polignac number, because 2131129317 - 2² = 2131129313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131129313) 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 11 ways as a sum of consecutive naturals, for example, 442798 + ... + 447584.

Almost surely, 2^2131129317 is an apocalyptic number.

It is an amenable number.

2131129317 is a deficient number, since it is larger than the sum of its proper divisors (802650779).

2131129317 is an frugal number, since it uses more digits than its factorization.

2131129317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9608 (or 4821 counting only the distinct ones).

The product of its digits is 2268, while the sum is 30.

The square root of 2131129317 is about 46164.1561928733. The cubic root of 2131129317 is about 1286.8757028879.

The spelling of 2131129317 in words is "two billion, one hundred thirty-one million, one hundred twenty-nine thousand, three hundred seventeen".