22013001305 has 4 divisors (see below), whose sum is σ = 26415601572. Its totient is φ = 17610401040.

The previous prime is 22013001233. The next prime is 22013001337. The reversal of 22013001305 is 50310031022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50310031022 = 2 ⋅25155015511.

It can be written as a sum of positive squares in 2 ways, for example, as 17203994896 + 4809006409 = 131164^2 + 69347^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22013001305 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201300126 + ... + 2201300135.

It is an arithmetic number, because the mean of its divisors is an integer number (6603900393).

Almost surely, 2^22013001305 is an apocalyptic number.

It is an amenable number.

22013001305 is a deficient number, since it is larger than the sum of its proper divisors (4402600267).

22013001305 is an equidigital number, since it uses as much as digits as its factorization.

22013001305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402600266.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 22013001305 its reverse (50310031022), we get a palindrome (72323032327).

The spelling of 22013001305 in words is "twenty-two billion, thirteen million, one thousand, three hundred five".