203300023122 has 128 divisors (see below), whose sum is σ = 533927116800. Its totient is φ = 56111356800.

The previous prime is 203300023081. The next prime is 203300023133. The reversal of 203300023122 is 221320003302.

It is a happy number.

203300023122 is a `hidden beast` number, since 20 + 330 + 0 + 0 + 2 + 312 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 203300023095 and 203300023104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6652297 + ... + 6682787.

It is an arithmetic number, because the mean of its divisors is an integer number (4171305600).

Almost surely, 2^203300023122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203300023122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266963558400).

203300023122 is an abundant number, since it is smaller than the sum of its proper divisors (330627093678).

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

203300023122 is a wasteful number, since it uses less digits than its factorization.

203300023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31109 (or 31103 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 203300023122 its reverse (221320003302), we get a palindrome (424620026424).

The spelling of 203300023122 in words is "two hundred three billion, three hundred million, twenty-three thousand, one hundred twenty-two".