231331113401 has 32 divisors (see below), whose sum is σ = 252764209152. Its totient is φ = 210874245120.

The previous prime is 231331113359. The next prime is 231331113451. The reversal of 231331113401 is 104311133132.

It is not a de Polignac number, because 231331113401 - 2⁶ = 231331113337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231331113451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36885896 + ... + 36892166.

It is an arithmetic number, because the mean of its divisors is an integer number (7898881536).

Almost surely, 2^231331113401 is an apocalyptic number.

It is an amenable number.

231331113401 is a deficient number, since it is larger than the sum of its proper divisors (21433095751).

231331113401 is a wasteful number, since it uses less digits than its factorization.

231331113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231331113401 its reverse (104311133132), we get a palindrome (335642246533).

The spelling of 231331113401 in words is "two hundred thirty-one billion, three hundred thirty-one million, one hundred thirteen thousand, four hundred one".