231232023321 has 16 divisors (see below), whose sum is σ = 332095068480. Its totient is φ = 142266801600.

The previous prime is 231232023317. The next prime is 231232023361. The reversal of 231232023321 is 123320232132.

It is not a de Polignac number, because 231232023321 - 2² = 231232023317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231232023291 and 231232023300.

It is not an unprimeable number, because it can be changed into a prime (231232023361) 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, 432255 + ... + 805796.

It is an arithmetic number, because the mean of its divisors is an integer number (20755941780).

Almost surely, 2^231232023321 is an apocalyptic number.

It is an amenable number.

231232023321 is a deficient number, since it is larger than the sum of its proper divisors (100863045159).

231232023321 is a wasteful number, since it uses less digits than its factorization.

231232023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242856.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231232023321 its reverse (123320232132), we get a palindrome (354552255453).

The spelling of 231232023321 in words is "two hundred thirty-one billion, two hundred thirty-two million, twenty-three thousand, three hundred twenty-one".