19422310321 has 4 divisors (see below), whose sum is σ = 20444537200. Its totient is φ = 18400083444.

The previous prime is 19422310307. The next prime is 19422310373. The reversal of 19422310321 is 12301322491.

It is a happy number.

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 19422310321 - 2¹¹ = 19422308273 is a prime.

It is a super-2 number, since 2×19422310321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19422310321.

It is not an unprimeable number, because it can be changed into a prime (19422313321) 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, 511113411 + ... + 511113448.

It is an arithmetic number, because the mean of its divisors is an integer number (5111134300).

Almost surely, 2^19422310321 is an apocalyptic number.

It is an amenable number.

19422310321 is a deficient number, since it is larger than the sum of its proper divisors (1022226879).

19422310321 is a wasteful number, since it uses less digits than its factorization.

19422310321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022226878.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 19422310321 in words is "nineteen billion, four hundred twenty-two million, three hundred ten thousand, three hundred twenty-one".