2131402431 has 8 divisors (see below), whose sum is σ = 2842135344. Its totient is φ = 1420802240.

The previous prime is 2131402397. The next prime is 2131402451. The reversal of 2131402431 is 1342041312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131402431 - 2³⁰ = 1057660607 is a prime.

It is a super-2 number, since 2×2131402431² = 9085752645745419522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131402398 and 2131402407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131402451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13795 + ... + 66731.

It is an arithmetic number, because the mean of its divisors is an integer number (355266918).

Almost surely, 2^2131402431 is an apocalyptic number.

2131402431 is a deficient number, since it is larger than the sum of its proper divisors (710732913).

2131402431 is a wasteful number, since it uses less digits than its factorization.

2131402431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66361.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2131402431 is about 46167.1141723197. The cubic root of 2131402431 is about 1286.9306735483.

Adding to 2131402431 its reverse (1342041312), we get a palindrome (3473443743).

The spelling of 2131402431 in words is "two billion, one hundred thirty-one million, four hundred two thousand, four hundred thirty-one".