22020031013 has 8 divisors (see below), whose sum is σ = 22253515032. Its totient is φ = 21786679296.

The previous prime is 22020030953. The next prime is 22020031021. The reversal of 22020031013 is 31013002022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1844101249 + 20175929764 = 42943^2 + 142042^2 .

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 22020031013 - 2⁸ = 22020030757 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 (22020031213) 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, 321581 + ... + 383997.

It is an arithmetic number, because the mean of its divisors is an integer number (2781689379).

Almost surely, 2^22020031013 is an apocalyptic number.

It is an amenable number.

22020031013 is a deficient number, since it is larger than the sum of its proper divisors (233484019).

22020031013 is an equidigital number, since it uses as much as digits as its factorization.

22020031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66151.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22020031013 its reverse (31013002022), we get a palindrome (53033033035).

The spelling of 22020031013 in words is "twenty-two billion, twenty million, thirty-one thousand, thirteen".