231021121330323 has 16 divisors (see below), whose sum is σ = 342741749220000. Its totient is φ = 153794374624800.

The previous prime is 231021121330289. The next prime is 231021121330339. The reversal of 231021121330323 is 323033121120132.

231021121330323 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 2 + 1 + 1 + 2 + 1 + 330 + 323 = 666.

It is not a de Polignac number, because 231021121330323 - 2³² = 231016826363027 is a prime.

It is a super-2 number, since 2×231021121330323² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231021121330343) 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, 6102932448 + ... + 6102970301.

It is an arithmetic number, because the mean of its divisors is an integer number (21421359326250).

Almost surely, 2^{231021121330323} is an apocalyptic number.

231021121330323 is a deficient number, since it is larger than the sum of its proper divisors (111720627889677).

231021121330323 is a wasteful number, since it uses less digits than its factorization.

231021121330323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12205903459 (or 12205903453 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 231021121330323 its reverse (323033121120132), we get a palindrome (554054242450455).

The spelling of 231021121330323 in words is "two hundred thirty-one trillion, twenty-one billion, one hundred twenty-one million, three hundred thirty thousand, three hundred twenty-three".