11423441213 has 2 divisors, whose sum is σ = 11423441214. Its totient is φ = 11423441212.

The previous prime is 11423441209. The next prime is 11423441221. The reversal of 11423441213 is 31214432411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5926998169 + 5496443044 = 76987^2 + 74138^2 .

It is a cyclic number.

It is not a de Polignac number, because 11423441213 - 2² = 11423441209 is a prime.

It is a super-2 number, since 2×11423441213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11423441273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711720606 + 5711720607.

It is an arithmetic number, because the mean of its divisors is an integer number (5711720607).

Almost surely, 2^11423441213 is an apocalyptic number.

It is an amenable number.

11423441213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423441213 is an equidigital number, since it uses as much as digits as its factorization.

11423441213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

Adding to 11423441213 its reverse (31214432411), we get a palindrome (42637873624).

The spelling of 11423441213 in words is "eleven billion, four hundred twenty-three million, four hundred forty-one thousand, two hundred thirteen".