22311020113 has 4 divisors (see below), whose sum is σ = 22311589300. Its totient is φ = 22310450928.

The previous prime is 22311020107. The next prime is 22311020131. The reversal of 22311020113 is 31102011322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20485338129 + 1825681984 = 143127^2 + 42728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22311020113 is a prime.

It is a super-3 number, since 3×22311020113³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22311020513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221070 + ... + 305767.

It is an arithmetic number, because the mean of its divisors is an integer number (5577897325).

Almost surely, 2^22311020113 is an apocalyptic number.

It is an amenable number.

22311020113 is a deficient number, since it is larger than the sum of its proper divisors (569187).

22311020113 is an equidigital number, since it uses as much as digits as its factorization.

22311020113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569186.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22311020113 its reverse (31102011322), we get a palindrome (53413031435).

It can be divided in two parts, 22 and 311020113, that multiplied together give a palindrome (6842442486).

The spelling of 22311020113 in words is "twenty-two billion, three hundred eleven million, twenty thousand, one hundred thirteen".