200321012421 has 24 divisors (see below), whose sum is σ = 290431664640. Its totient is φ = 133049743200.

The previous prime is 200321012417. The next prime is 200321012443. The reversal of 200321012421 is 124210123002.

It is a happy number.

200321012421 is a `hidden beast` number, since 20 + 0 + 3 + 210 + 12 + 421 = 666.

It is not a de Polignac number, because 200321012421 - 2² = 200321012417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200321012394 and 200321012403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200321012321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5773836 + ... + 5808426.

It is an arithmetic number, because the mean of its divisors is an integer number (12101319360).

Almost surely, 2^200321012421 is an apocalyptic number.

It is an amenable number.

200321012421 is a deficient number, since it is larger than the sum of its proper divisors (90110652219).

200321012421 is a wasteful number, since it uses less digits than its factorization.

200321012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36977 (or 36974 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200321012421 its reverse (124210123002), we get a palindrome (324531135423).

The spelling of 200321012421 in words is "two hundred billion, three hundred twenty-one million, twelve thousand, four hundred twenty-one".