22111020313 has 2 divisors, whose sum is σ = 22111020314. Its totient is φ = 22111020312.

The previous prime is 22111020277. The next prime is 22111020329. The reversal of 22111020313 is 31302011122.

It is an a-pointer prime, because the next prime (22111020329) can be obtained adding 22111020313 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21751235289 + 359785024 = 147483^2 + 18968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111020313 is a prime.

It is not a weakly prime, because it can be changed into another prime (22111020713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055510156 + 11055510157.

It is an arithmetic number, because the mean of its divisors is an integer number (11055510157).

Almost surely, 2^22111020313 is an apocalyptic number.

It is an amenable number.

22111020313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111020313 is an equidigital number, since it uses as much as digits as its factorization.

22111020313 is an evil number, because the sum of its binary digits is even.

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

Adding to 22111020313 its reverse (31302011122), we get a palindrome (53413031435).

The spelling of 22111020313 in words is "twenty-two billion, one hundred eleven million, twenty thousand, three hundred thirteen".