231255440313 has 8 divisors (see below), whose sum is σ = 315861089376. Its totient is φ = 150410042400.

The previous prime is 231255440309. The next prime is 231255440321. The reversal of 231255440313 is 313044552132.

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

It is not a de Polignac number, because 231255440313 - 2² = 231255440309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231255430313) 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, 940062643 + ... + 940062888.

It is an arithmetic number, because the mean of its divisors is an integer number (39482636172).

Almost surely, 2^231255440313 is an apocalyptic number.

It is an amenable number.

231255440313 is a deficient number, since it is larger than the sum of its proper divisors (84605649063).

231255440313 is a wasteful number, since it uses less digits than its factorization.

231255440313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880125575.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 231255440313 its reverse (313044552132), we get a palindrome (544299992445).

The spelling of 231255440313 in words is "two hundred thirty-one billion, two hundred fifty-five million, four hundred forty thousand, three hundred thirteen".