231642131603 has 4 divisors (see below), whose sum is σ = 243833822760. Its totient is φ = 219450440448.

The previous prime is 231642131509. The next prime is 231642131627. The reversal of 231642131603 is 306131246132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231642131603 - 2²⁶ = 231575022739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231642131603.

It is not an unprimeable number, because it can be changed into a prime (231642731603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6095845550 + ... + 6095845587.

It is an arithmetic number, because the mean of its divisors is an integer number (60958455690).

Almost surely, 2^231642131603 is an apocalyptic number.

231642131603 is a deficient number, since it is larger than the sum of its proper divisors (12191691157).

231642131603 is a wasteful number, since it uses less digits than its factorization.

231642131603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191691156.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 231642131603 its reverse (306131246132), we get a palindrome (537773377735).

The spelling of 231642131603 in words is "two hundred thirty-one billion, six hundred forty-two million, one hundred thirty-one thousand, six hundred three".