11923132213 has 2 divisors, whose sum is σ = 11923132214. Its totient is φ = 11923132212.

The previous prime is 11923132211. The next prime is 11923132231. The reversal of 11923132213 is 31223132911.

Together with next prime (11923132231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10933211844 + 989920369 = 104562^2 + 31463^2 .

It is an emirp because it is prime and its reverse (31223132911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11923132213 - 2¹ = 11923132211 is a prime.

It is a super-2 number, since 2×11923132213² (a number of 21 digits) contains 22 as substring.

Together with 11923132211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11923132211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5961566106 + 5961566107.

It is an arithmetic number, because the mean of its divisors is an integer number (5961566107).

Almost surely, 2^11923132213 is an apocalyptic number.

It is an amenable number.

11923132213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11923132213 is an equidigital number, since it uses as much as digits as its factorization.

11923132213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 28.

The spelling of 11923132213 in words is "eleven billion, nine hundred twenty-three million, one hundred thirty-two thousand, two hundred thirteen".