231331552245 has 48 divisors (see below), whose sum is σ = 428378408640. Its totient is φ = 115138755072.

The previous prime is 231331552237. The next prime is 231331552337. The reversal of 231331552245 is 542255133132.

231331552245 is a `hidden beast` number, since 2 + 31 + 3 + 31 + 552 + 2 + 45 = 666.

It is not a de Polignac number, because 231331552245 - 2³ = 231331552237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1961844 + ... + 2076413.

It is an arithmetic number, because the mean of its divisors is an integer number (8924550180).

Almost surely, 2^231331552245 is an apocalyptic number.

It is an amenable number.

231331552245 is a deficient number, since it is larger than the sum of its proper divisors (197046856395).

231331552245 is a wasteful number, since it uses less digits than its factorization.

231331552245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038354 (or 4038351 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 231331552245 its reverse (542255133132), we get a palindrome (773586685377).

The spelling of 231331552245 in words is "two hundred thirty-one billion, three hundred thirty-one million, five hundred fifty-two thousand, two hundred forty-five".