231123212220230 has 32 divisors (see below), whose sum is σ = 462404999554848. Its totient is φ = 82459053414400.

The previous prime is 231123212220193. The next prime is 231123212220239. The reversal of 231123212220230 is 32022212321132.

231123212220230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 231123212220230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231123212220239) 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, 19821882011 + ... + 19821893670.

It is an arithmetic number, because the mean of its divisors is an integer number (14450156236089).

Almost surely, 2^{231123212220230} is an apocalyptic number.

231123212220230 is an abundant number, since it is smaller than the sum of its proper divisors (231281787334618).

231123212220230 is a wasteful number, since it uses less digits than its factorization.

231123212220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39643775752.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231123212220230 its reverse (32022212321132), we get a palindrome (263145424541362).

The spelling of 231123212220230 in words is "two hundred thirty-one trillion, one hundred twenty-three billion, two hundred twelve million, two hundred twenty thousand, two hundred thirty".