231230022 has 16 divisors (see below), whose sum is σ = 489663792. Its totient is φ = 72542720.

The previous prime is 231230009. The next prime is 231230117. The reversal of 231230022 is 220032132.

It is a junction number, because it is equal to n+sod(n) for n = 231229983 and 231230010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133379 + ... + 1133582.

It is an arithmetic number, because the mean of its divisors is an integer number (30603987).

Almost surely, 2^231230022 is an apocalyptic number.

231230022 is an abundant number, since it is smaller than the sum of its proper divisors (258433770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231230022 is a wasteful number, since it uses less digits than its factorization.

231230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266983.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231230022 is about 15206.2494389642. The cubic root of 231230022 is about 613.7828369018.

Adding to 231230022 its reverse (220032132), we get a palindrome (451262154).

The spelling of 231230022 in words is "two hundred thirty-one million, two hundred thirty thousand, twenty-two".