231120311233 has 16 divisors (see below), whose sum is σ = 278054784000. Its totient is φ = 187666308432.

The previous prime is 231120311183. The next prime is 231120311269. The reversal of 231120311233 is 332113021132.

It is a de Polignac number, because none of the positive numbers 2^k-231120311233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231120311533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3204078 + ... + 3275416.

It is an arithmetic number, because the mean of its divisors is an integer number (17378424000).

Almost surely, 2^231120311233 is an apocalyptic number.

It is an amenable number.

231120311233 is a deficient number, since it is larger than the sum of its proper divisors (46934472767).

231120311233 is a wasteful number, since it uses less digits than its factorization.

231120311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95724.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231120311233 its reverse (332113021132), we get a palindrome (563233332365).

The spelling of 231120311233 in words is "two hundred thirty-one billion, one hundred twenty million, three hundred eleven thousand, two hundred thirty-three".