231311023033 has 8 divisors (see below), whose sum is σ = 232033312640. Its totient is φ = 230588875440.

The previous prime is 231311022997. The next prime is 231311023037. The reversal of 231311023033 is 330320113132.

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

It is a cyclic number.

It is not a de Polignac number, because 231311023033 - 2⁹ = 231311022521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231311022995 and 231311023013.

It is not an unprimeable number, because it can be changed into a prime (231311023037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3905203 + ... + 3963991.

It is an arithmetic number, because the mean of its divisors is an integer number (29004164080).

Almost surely, 2^231311023033 is an apocalyptic number.

It is an amenable number.

231311023033 is a deficient number, since it is larger than the sum of its proper divisors (722289607).

231311023033 is a wasteful number, since it uses less digits than its factorization.

231311023033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71007.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231311023033 its reverse (330320113132), we get a palindrome (561631136165).

Subtracting 231311023033 from its reverse (330320113132), we obtain a palindrome (99009090099).

The spelling of 231311023033 in words is "two hundred thirty-one billion, three hundred eleven million, twenty-three thousand, thirty-three".