231223123210 has 32 divisors (see below), whose sum is σ = 434346675840. Its totient is φ = 88457928768.

The previous prime is 231223123207. The next prime is 231223123223. The reversal of 231223123210 is 12321322132.

It is a super-4 number, since 4×231223123210⁴ (a number of 47 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158701 + ... + 2263279.

It is an arithmetic number, because the mean of its divisors is an integer number (13573333620).

Almost surely, 2^231223123210 is an apocalyptic number.

231223123210 is a deficient number, since it is larger than the sum of its proper divisors (203123552630).

231223123210 is a wasteful number, since it uses less digits than its factorization.

231223123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114222.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231223123210 its reverse (12321322132), we get a palindrome (243544445342).

The spelling of 231223123210 in words is "two hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-three thousand, two hundred ten".