203132133123100 has 72 divisors (see below), whose sum is σ = 445352892691280. Its totient is φ = 80413052037120.

The previous prime is 203132133123043. The next prime is 203132133123109. The reversal of 203132133123100 is 1321331231302.

It is a super-2 number, since 2×203132133123100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203132133123109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392193502 + ... + 392711098.

Almost surely, 2^{203132133123100} is an apocalyptic number.

203132133123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203132133123100 is an abundant number, since it is smaller than the sum of its proper divisors (242220759568180).

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

203132133123100 is a wasteful number, since it uses less digits than its factorization.

203132133123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558167 (or 558160 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 203132133123100 its reverse (1321331231302), we get a palindrome (204453464354402).

The spelling of 203132133123100 in words is "two hundred three trillion, one hundred thirty-two billion, one hundred thirty-three million, one hundred twenty-three thousand, one hundred".