203122211130 has 96 divisors (see below), whose sum is σ = 546532766208. Its totient is φ = 52299561600.

The previous prime is 203122211113. The next prime is 203122211143. The reversal of 203122211130 is 31112221302.

203122211130 is a `hidden beast` number, since 2 + 0 + 312 + 221 + 1 + 130 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203415 + ... + 669045.

It is an arithmetic number, because the mean of its divisors is an integer number (5693049648).

Almost surely, 2^203122211130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203122211130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273266383104).

203122211130 is an abundant number, since it is smaller than the sum of its proper divisors (343410555078).

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

203122211130 is a wasteful number, since it uses less digits than its factorization.

203122211130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465812 (or 465809 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203122211130 its reverse (31112221302), we get a palindrome (234234432432).

The spelling of 203122211130 in words is "two hundred three billion, one hundred twenty-two million, two hundred eleven thousand, one hundred thirty".