200312421 has 16 divisors (see below), whose sum is σ = 290211840. Its totient is φ = 122430960.

The previous prime is 200312419. The next prime is 200312423. The reversal of 200312421 is 124213002.

200312421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200312419) and next prime (200312423).

It is not a de Polignac number, because 200312421 - 2¹ = 200312419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200312421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200312423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54915 + ... + 58448.

It is an arithmetic number, because the mean of its divisors is an integer number (18138240).

Almost surely, 2^200312421 is an apocalyptic number.

It is an amenable number.

200312421 is a deficient number, since it is larger than the sum of its proper divisors (89899419).

200312421 is a wasteful number, since it uses less digits than its factorization.

200312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113416.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 200312421 is about 14153.1770638256. The cubic root of 200312421 is about 585.1078974040.

Adding to 200312421 its reverse (124213002), we get a palindrome (324525423).

The spelling of 200312421 in words is "two hundred million, three hundred twelve thousand, four hundred twenty-one".