231403431303 has 24 divisors (see below), whose sum is σ = 364653169920. Its totient is φ = 140237788560.

The previous prime is 231403431251. The next prime is 231403431307. The reversal of 231403431303 is 303134304132.

231403431303 is a `hidden beast` number, since 2 + 3 + 14 + 0 + 343 + 1 + 303 = 666.

It is not a de Polignac number, because 231403431303 - 2²⁴ = 231386654087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403431307) 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, 2708050 + ... + 2792192.

It is an arithmetic number, because the mean of its divisors is an integer number (15193882080).

Almost surely, 2^231403431303 is an apocalyptic number.

231403431303 is a deficient number, since it is larger than the sum of its proper divisors (133249738617).

231403431303 is a wasteful number, since it uses less digits than its factorization.

231403431303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111939 (or 111936 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 231403431303 its reverse (303134304132), we get a palindrome (534537735435).

The spelling of 231403431303 in words is "two hundred thirty-one billion, four hundred three million, four hundred thirty-one thousand, three hundred three".