2131230403 has 8 divisors (see below), whose sum is σ = 2163896000. Its totient is φ = 2098590120.

The previous prime is 2131230397. The next prime is 2131230419. The reversal of 2131230403 is 3040321312.

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 2131230403 - 2²⁵ = 2097675971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131230443) 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, 229888 + ... + 238978.

It is an arithmetic number, because the mean of its divisors is an integer number (270487000).

Almost surely, 2^2131230403 is an apocalyptic number.

2131230403 is a deficient number, since it is larger than the sum of its proper divisors (32665597).

2131230403 is an equidigital number, since it uses as much as digits as its factorization.

2131230403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12657.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2131230403 is about 46165.2510336508. The cubic root of 2131230403 is about 1286.8960493868.

Adding to 2131230403 its reverse (3040321312), we get a palindrome (5171551715).

Subtracting 2131230403 from its reverse (3040321312), we obtain a palindrome (909090909).

It can be divided in two parts, 21312 and 30403, that added together give a palindrome (51715).

The spelling of 2131230403 in words is "two billion, one hundred thirty-one million, two hundred thirty thousand, four hundred three".