9213200321 has 16 divisors (see below), whose sum is σ = 10357931136. Its totient is φ = 8131090176.

The previous prime is 9213200309. The next prime is 9213200329. The reversal of 9213200321 is 1230023129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9213200321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (9213200329) 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, 832601 + ... + 843593.

It is an arithmetic number, because the mean of its divisors is an integer number (647370696).

Almost surely, 2^9213200321 is an apocalyptic number.

It is an amenable number.

9213200321 is a deficient number, since it is larger than the sum of its proper divisors (1144730815).

9213200321 is a wasteful number, since it uses less digits than its factorization.

9213200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13832.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 9213200321 is about 95985.4172309523. The cubic root of 9213200321 is about 2096.3807896220.

The spelling of 9213200321 in words is "nine billion, two hundred thirteen million, two hundred thousand, three hundred twenty-one".