233130400220 has 24 divisors (see below), whose sum is σ = 489863086944. Its totient is φ = 93197065536.

The previous prime is 233130400213. The next prime is 233130400289. The reversal of 233130400220 is 22004031332.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 233130400192 and 233130400201.

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, 3408704 + ... + 3476423.

It is an arithmetic number, because the mean of its divisors is an integer number (20410961956).

Almost surely, 2^233130400220 is an apocalyptic number.

233130400220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233130400220 is an abundant number, since it is smaller than the sum of its proper divisors (256732686724).

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

233130400220 is a wasteful number, since it uses less digits than its factorization.

233130400220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6886829 (or 6886827 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 233130400220 its reverse (22004031332), we get a palindrome (255134431552).

The spelling of 233130400220 in words is "two hundred thirty-three billion, one hundred thirty million, four hundred thousand, two hundred twenty".