11801179213 has 2 divisors, whose sum is σ = 11801179214. Its totient is φ = 11801179212.

The previous prime is 11801179171. The next prime is 11801179223. The reversal of 11801179213 is 31297110811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7998976969 + 3802202244 = 89437^2 + 61662^2 .

It is an emirp because it is prime and its reverse (31297110811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11801179213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11801179223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900589606 + 5900589607.

It is an arithmetic number, because the mean of its divisors is an integer number (5900589607).

Almost surely, 2^11801179213 is an apocalyptic number.

It is an amenable number.

11801179213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11801179213 is an equidigital number, since it uses as much as digits as its factorization.

11801179213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 34.

The spelling of 11801179213 in words is "eleven billion, eight hundred one million, one hundred seventy-nine thousand, two hundred thirteen".