3720213200321 has 8 divisors (see below), whose sum is σ = 3788133434400. Its totient is φ = 3652842928032.

The previous prime is 3720213200311. The next prime is 3720213200323. The reversal of 3720213200321 is 1230023120273.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3720213200321 - 2⁶ = 3720213200257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3720213200323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137476796 + ... + 137503853.

It is an arithmetic number, because the mean of its divisors is an integer number (473516679300).

Almost surely, 2^{3720213200321} is an apocalyptic number.

It is an amenable number.

3720213200321 is a deficient number, since it is larger than the sum of its proper divisors (67920234079).

3720213200321 is a wasteful number, since it uses less digits than its factorization.

3720213200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274980895.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 3720213200321 its reverse (1230023120273), we get a palindrome (4950236320594).

The spelling of 3720213200321 in words is "three trillion, seven hundred twenty billion, two hundred thirteen million, two hundred thousand, three hundred twenty-one".