203122031130 has 64 divisors (see below), whose sum is σ = 560336659200. Its totient is φ = 52298084160.

The previous prime is 203122031117. The next prime is 203122031183. The reversal of 203122031130 is 31130221302.

203122031130 is a `hidden beast` number, since 20 + 312 + 20 + 311 + 3 + 0 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12962926 + ... + 12978585.

It is an arithmetic number, because the mean of its divisors is an integer number (8755260300).

Almost surely, 2^203122031130 is an apocalyptic number.

203122031130 is an abundant number, since it is smaller than the sum of its proper divisors (357214628070).

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

203122031130 is a wasteful number, since it uses less digits than its factorization.

203122031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25941556 (or 25941550 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203122031130 its reverse (31130221302), we get a palindrome (234252252432).

The spelling of 203122031130 in words is "two hundred three billion, one hundred twenty-two million, thirty-one thousand, one hundred thirty".