321113220019 has 4 divisors (see below), whose sum is σ = 321158652640. Its totient is φ = 321067787400.

The previous prime is 321113220011. The next prime is 321113220023. The reversal of 321113220019 is 910022311123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321113220019 - 2³ = 321113220011 is a prime.

It is a super-3 number, since 3×321113220019³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321113219975 and 321113220002.

It is not an unprimeable number, because it can be changed into a prime (321113220011) 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, 22705707 + ... + 22719844.

It is an arithmetic number, because the mean of its divisors is an integer number (80289663160).

Almost surely, 2^321113220019 is an apocalyptic number.

321113220019 is a deficient number, since it is larger than the sum of its proper divisors (45432621).

321113220019 is an equidigital number, since it uses as much as digits as its factorization.

321113220019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45432620.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 321113220019 in words is "three hundred twenty-one billion, one hundred thirteen million, two hundred twenty thousand, nineteen".