231422353421 has 12 divisors (see below), whose sum is σ = 280955662368. Its totient is φ = 186693661632.

The previous prime is 231422353411. The next prime is 231422353429. The reversal of 231422353421 is 124353224132.

It is a de Polignac number, because none of the positive numbers 2^k-231422353421 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 (231422353429) 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, 57195791 + ... + 57199836.

It is an arithmetic number, because the mean of its divisors is an integer number (23412971864).

Almost surely, 2^231422353421 is an apocalyptic number.

It is an amenable number.

231422353421 is a deficient number, since it is larger than the sum of its proper divisors (49533308947).

231422353421 is a wasteful number, since it uses less digits than its factorization.

231422353421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114395668 (or 114395651 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

Adding to 231422353421 its reverse (124353224132), we get a palindrome (355775577553).

The spelling of 231422353421 in words is "two hundred thirty-one billion, four hundred twenty-two million, three hundred fifty-three thousand, four hundred twenty-one".