231342311421 has 24 divisors (see below), whose sum is σ = 360505113696. Its totient is φ = 142111591200.

The previous prime is 231342311401. The next prime is 231342311423. The reversal of 231342311421 is 124113243132.

231342311421 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 4 + 231 + 1 + 421 = 666.

It is not a de Polignac number, because 231342311421 - 2¹⁵ = 231342278653 is a prime.

It is a super-2 number, since 2×231342311421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342311423) 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, 1690155 + ... + 1821896.

It is an arithmetic number, because the mean of its divisors is an integer number (15021046404).

Almost surely, 2^231342311421 is an apocalyptic number.

It is an amenable number.

231342311421 is a deficient number, since it is larger than the sum of its proper divisors (129162802275).

231342311421 is a wasteful number, since it uses less digits than its factorization.

231342311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512633 (or 3512630 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 231342311421 its reverse (124113243132), we get a palindrome (355455554553).

The spelling of 231342311421 in words is "two hundred thirty-one billion, three hundred forty-two million, three hundred eleven thousand, four hundred twenty-one".