231232220313 has 8 divisors (see below), whose sum is σ = 308318064000. Its totient is φ = 154150595088.

The previous prime is 231232220281. The next prime is 231232220333. The reversal of 231232220313 is 313022232132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231232220313 - 2⁵ = 231232220281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231232220333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924418 + ... + 1147611.

It is an arithmetic number, because the mean of its divisors is an integer number (38539758000).

Almost surely, 2^231232220313 is an apocalyptic number.

It is an amenable number.

231232220313 is a deficient number, since it is larger than the sum of its proper divisors (77085843687).

231232220313 is a wasteful number, since it uses less digits than its factorization.

231232220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109231.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231232220313 its reverse (313022232132), we get a palindrome (544254452445).

The spelling of 231232220313 in words is "two hundred thirty-one billion, two hundred thirty-two million, two hundred twenty thousand, three hundred thirteen".