203110122000 has 160 divisors (see below), whose sum is σ = 655851665664. Its totient is φ = 54077952000.

The previous prime is 203110121983. The next prime is 203110122031. The reversal of 203110122000 is 221011302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3855840 + ... + 3908160.

Almost surely, 2^203110122000 is an apocalyptic number.

203110122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203110122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327925832832).

203110122000 is an abundant number, since it is smaller than the sum of its proper divisors (452741543664).

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

203110122000 is a wasteful number, since it uses less digits than its factorization.

203110122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52994 (or 52978 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 203110122000 its reverse (221011302), we get a palindrome (203331133302).

The spelling of 203110122000 in words is "two hundred three billion, one hundred ten million, one hundred twenty-two thousand".