203413200021 has 32 divisors (see below), whose sum is σ = 302963360000. Its totient is φ = 134885248704.

The previous prime is 203413199963. The next prime is 203413200041. The reversal of 203413200021 is 120002314302.

203413200021 is a `hidden beast` number, since 2 + 0 + 341 + 320 + 0 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 203413200021 - 2¹¹ = 203413197973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203413199967 and 203413200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203413200041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6557055 + ... + 6588003.

It is an arithmetic number, because the mean of its divisors is an integer number (9467605000).

Almost surely, 2^203413200021 is an apocalyptic number.

It is an amenable number.

203413200021 is a deficient number, since it is larger than the sum of its proper divisors (99550159979).

203413200021 is a wasteful number, since it uses less digits than its factorization.

203413200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32250 (or 32244 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 203413200021 its reverse (120002314302), we get a palindrome (323415514323).

The spelling of 203413200021 in words is "two hundred three billion, four hundred thirteen million, two hundred thousand, twenty-one".