203313121129980 has 144 divisors (see below), whose sum is σ = 618018725548224. Its totient is φ = 54102361052160.

The previous prime is 203313121129949. The next prime is 203313121130003. The reversal of 203313121129980 is 89921121313302.

203313121129980 is a `hidden beast` number, since 2 + 0 + 3 + 31 + 312 + 11 + 299 + 8 + 0 = 666.

It is a super-2 number, since 2×203313121129980² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 1776022024 + ... + 1776136496.

It is an arithmetic number, because the mean of its divisors is an integer number (4291796705196).

Almost surely, 2^{203313121129980} is an apocalyptic number.

203313121129980 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 203313121129980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309009362774112).

203313121129980 is an abundant number, since it is smaller than the sum of its proper divisors (414705604418244).

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

203313121129980 is a wasteful number, since it uses less digits than its factorization.

203313121129980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135236 (or 135231 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 203313121129980 in words is "two hundred three trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred twenty-nine thousand, nine hundred eighty".