20331123230 has 64 divisors (see below), whose sum is σ = 40815912960. Its totient is φ = 7228108800.

The previous prime is 20331123227. The next prime is 20331123257. The reversal of 20331123230 is 3232113302.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7283135 + ... + 7285925.

It is an arithmetic number, because the mean of its divisors is an integer number (637748640).

Almost surely, 2^20331123230 is an apocalyptic number.

20331123230 is an abundant number, since it is smaller than the sum of its proper divisors (20484789730).

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

20331123230 is a wasteful number, since it uses less digits than its factorization.

20331123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20331123230 its reverse (3232113302), we get a palindrome (23563236532).

The spelling of 20331123230 in words is "twenty billion, three hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty".