2142403131 has 24 divisors (see below), whose sum is σ = 3143705040. Its totient is φ = 1296824320.

The previous prime is 2142403117. The next prime is 2142403139. The reversal of 2142403131 is 1313042412.

It is not a de Polignac number, because 2142403131 - 2¹⁰ = 2142402107 is a prime.

It is a super-2 number, since 2×2142403131² = 9179782351437206322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142403098 and 2142403107.

It is not an unprimeable number, because it can be changed into a prime (2142403139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334051 + ... + 340403.

It is an arithmetic number, because the mean of its divisors is an integer number (130987710).

Almost surely, 2^2142403131 is an apocalyptic number.

2142403131 is a deficient number, since it is larger than the sum of its proper divisors (1001301909).

2142403131 is a wasteful number, since it uses less digits than its factorization.

2142403131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307 (or 7296 counting only the distinct ones).

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

The square root of 2142403131 is about 46286.1008403171. The cubic root of 2142403131 is about 1289.1409321522.

Adding to 2142403131 its reverse (1313042412), we get a palindrome (3455445543).

The spelling of 2142403131 in words is "two billion, one hundred forty-two million, four hundred three thousand, one hundred thirty-one".