16310374011221 has 4 divisors (see below), whose sum is σ = 16395768639744. Its totient is φ = 16224979382700.

The previous prime is 16310374011209. The next prime is 16310374011223. The reversal of 16310374011221 is 12211047301361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16310374011221 - 2¹⁰ = 16310374010197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16310374011223) 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, 42697313975 + ... + 42697314356.

It is an arithmetic number, because the mean of its divisors is an integer number (4098942159936).

Almost surely, 2^{16310374011221} is an apocalyptic number.

It is an amenable number.

16310374011221 is a deficient number, since it is larger than the sum of its proper divisors (85394628523).

16310374011221 is an equidigital number, since it uses as much as digits as its factorization.

16310374011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85394628522.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 16310374011221 in words is "sixteen trillion, three hundred ten billion, three hundred seventy-four million, eleven thousand, two hundred twenty-one".