213403200321 has 32 divisors (see below), whose sum is σ = 289570619520. Its totient is φ = 139775440896.

The previous prime is 213403200319. The next prime is 213403200323. The reversal of 213403200321 is 123002304312.

It is an interprime number because it is at equal distance from previous prime (213403200319) and next prime (213403200323).

It is not a de Polignac number, because 213403200321 - 2¹ = 213403200319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213403200323) 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, 91235770 + ... + 91238108.

It is an arithmetic number, because the mean of its divisors is an integer number (9049081860).

Almost surely, 2^213403200321 is an apocalyptic number.

It is an amenable number.

213403200321 is a deficient number, since it is larger than the sum of its proper divisors (76167419199).

213403200321 is a wasteful number, since it uses less digits than its factorization.

213403200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213403200321 its reverse (123002304312), we get a palindrome (336405504633).

The spelling of 213403200321 in words is "two hundred thirteen billion, four hundred three million, two hundred thousand, three hundred twenty-one".