231441545331 has 12 divisors (see below), whose sum is σ = 345088469440. Its totient is φ = 149317125840.

The previous prime is 231441545327. The next prime is 231441545389. The reversal of 231441545331 is 133545144132.

231441545331 is a `hidden beast` number, since 2 + 31 + 4 + 41 + 54 + 533 + 1 = 666.

It is not a de Polignac number, because 231441545331 - 2² = 231441545327 is a prime.

It is a super-2 number, since 2×231441545331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231441545311) 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, 414769516 + ... + 414770073.

Almost surely, 2^231441545331 is an apocalyptic number.

231441545331 is a deficient number, since it is larger than the sum of its proper divisors (113646924109).

231441545331 is a wasteful number, since it uses less digits than its factorization.

231441545331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829539626 (or 829539623 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 231441545331 its reverse (133545144132), we get a palindrome (364986689463).

The spelling of 231441545331 in words is "two hundred thirty-one billion, four hundred forty-one million, five hundred forty-five thousand, three hundred thirty-one".