20104123230 has 48 divisors (see below), whose sum is σ = 52279675344. Its totient is φ = 5360181120.

The previous prime is 20104123223. The next prime is 20104123297. The reversal of 20104123230 is 3232140102.

20104123230 is a `hidden beast` number, since 20 + 1 + 0 + 412 + 3 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 631290 + ... + 662370.

It is an arithmetic number, because the mean of its divisors is an integer number (1089159903).

Almost surely, 2^20104123230 is an apocalyptic number.

20104123230 is an abundant number, since it is smaller than the sum of its proper divisors (32175552114).

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

20104123230 is a wasteful number, since it uses less digits than its factorization.

20104123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38281 (or 38278 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20104123230 its reverse (3232140102), we get a palindrome (23336263332).

The spelling of 20104123230 in words is "twenty billion, one hundred four million, one hundred twenty-three thousand, two hundred thirty".