2131403043 has 32 divisors (see below), whose sum is σ = 3552509952. Its totient is φ = 1104285600.

The previous prime is 2131403039. The next prime is 2131403051. The reversal of 2131403043 is 3403041312.

It is not a de Polignac number, because 2131403043 - 2² = 2131403039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2131403023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76428 + ... + 100518.

It is an arithmetic number, because the mean of its divisors is an integer number (111015936).

Almost surely, 2^2131403043 is an apocalyptic number.

2131403043 is a deficient number, since it is larger than the sum of its proper divisors (1421106909).

2131403043 is a wasteful number, since it uses less digits than its factorization.

2131403043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24495.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2131403043 is about 46167.1208004138. The cubic root of 2131403043 is about 1286.9307967226.

Adding to 2131403043 its reverse (3403041312), we get a palindrome (5534444355).

The spelling of 2131403043 in words is "two billion, one hundred thirty-one million, four hundred three thousand, forty-three".