200421313 has 4 divisors (see below), whose sum is σ = 212210820. Its totient is φ = 188631808.

The previous prime is 200421311. The next prime is 200421383. The reversal of 200421313 is 313124002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313124002 = 2 ⋅156562001.

It can be written as a sum of positive squares in 2 ways, for example, as 88209664 + 112211649 = 9392^2 + 10593^2 .

It is a cyclic number.

It is not a de Polignac number, because 200421313 - 2¹ = 200421311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200421311) 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, 5894728 + ... + 5894761.

It is an arithmetic number, because the mean of its divisors is an integer number (53052705).

Almost surely, 2^200421313 is an apocalyptic number.

It is an amenable number.

200421313 is a deficient number, since it is larger than the sum of its proper divisors (11789507).

200421313 is a wasteful number, since it uses less digits than its factorization.

200421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789506.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 200421313 is about 14157.0234512768. The cubic root of 200421313 is about 585.2139018598.

Adding to 200421313 its reverse (313124002), we get a palindrome (513545315).

The spelling of 200421313 in words is "two hundred million, four hundred twenty-one thousand, three hundred thirteen".