231233110021 has 8 divisors (see below), whose sum is σ = 233556514560. Its totient is φ = 228912712128.

The previous prime is 231233110013. The next prime is 231233110037. The reversal of 231233110021 is 120011332132.

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 231233110021 - 2³ = 231233110013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231233110001) 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, 596916 + ... + 904861.

It is an arithmetic number, because the mean of its divisors is an integer number (29194564320).

Almost surely, 2^231233110021 is an apocalyptic number.

It is an amenable number.

231233110021 is a deficient number, since it is larger than the sum of its proper divisors (2323404539).

231233110021 is a wasteful number, since it uses less digits than its factorization.

231233110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503323.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231233110021 its reverse (120011332132), we get a palindrome (351244442153).

The spelling of 231233110021 in words is "two hundred thirty-one billion, two hundred thirty-three million, one hundred ten thousand, twenty-one".