231311030023 has 8 divisors (see below), whose sum is σ = 233269538688. Its totient is φ = 229356436224.

The previous prime is 231311029979. The next prime is 231311030033. The reversal of 231311030023 is 320030113132.

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 231311030023 - 2³³ = 222721095431 is a prime.

It is a super-2 number, since 2×231311030023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231311030033) 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, 859986 + ... + 1096447.

It is an arithmetic number, because the mean of its divisors is an integer number (29158692336).

Almost surely, 2^231311030023 is an apocalyptic number.

231311030023 is a deficient number, since it is larger than the sum of its proper divisors (1958508665).

231311030023 is a wasteful number, since it uses less digits than its factorization.

231311030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957433.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231311030023 its reverse (320030113132), we get a palindrome (551341143155).

The spelling of 231311030023 in words is "two hundred thirty-one billion, three hundred eleven million, thirty thousand, twenty-three".