203421223041100 has 36 divisors (see below), whose sum is σ = 441426710429208. Its totient is φ = 81367999552000.

The previous prime is 203421223041067. The next prime is 203421223041103. The reversal of 203421223041100 is 1140322124302.

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

It is not an unprimeable number, because it can be changed into a prime (203421223041103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10812540 + ... + 22885660.

It is an arithmetic number, because the mean of its divisors is an integer number (12261853067478).

Almost surely, 2^{203421223041100} is an apocalyptic number.

203421223041100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203421223041100 is an abundant number, since it is smaller than the sum of its proper divisors (238005487388108).

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

203421223041100 is a wasteful number, since it uses less digits than its factorization.

203421223041100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12241626 (or 12241619 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 203421223041100 its reverse (1140322124302), we get a palindrome (204561545165402).

The spelling of 203421223041100 in words is "two hundred three trillion, four hundred twenty-one billion, two hundred twenty-three million, forty-one thousand, one hundred".