231314040421 has 12 divisors (see below), whose sum is σ = 235817568448. Its totient is φ = 226894986864.

The previous prime is 231314040371. The next prime is 231314040443. The reversal of 231314040421 is 124040413132.

It is not a de Polignac number, because 231314040421 - 2³³ = 222724105829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231314040721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16630756 + ... + 16644658.

Almost surely, 2^231314040421 is an apocalyptic number.

It is an amenable number.

231314040421 is a deficient number, since it is larger than the sum of its proper divisors (4503528027).

231314040421 is an equidigital number, since it uses as much as digits as its factorization.

231314040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932 (or 19879 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 231314040421 its reverse (124040413132), we get a palindrome (355354453553).

The spelling of 231314040421 in words is "two hundred thirty-one billion, three hundred fourteen million, forty thousand, four hundred twenty-one".