10200418021 has 4 divisors (see below), whose sum is σ = 10201247392. Its totient is φ = 10199588652.

The previous prime is 10200417977. The next prime is 10200418027. The reversal of 10200418021 is 12081400201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10200418021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10200418021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200418027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395955 + ... + 420928.

It is an arithmetic number, because the mean of its divisors is an integer number (2550311848).

Almost surely, 2^10200418021 is an apocalyptic number.

It is an amenable number.

10200418021 is a deficient number, since it is larger than the sum of its proper divisors (829371).

10200418021 is an equidigital number, since it uses as much as digits as its factorization.

10200418021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829370.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10200418021 its reverse (12081400201), we get a palindrome (22281818222).

The spelling of 10200418021 in words is "ten billion, two hundred million, four hundred eighteen thousand, twenty-one".