11212013291 has 2 divisors, whose sum is σ = 11212013292. Its totient is φ = 11212013290.

The previous prime is 11212013287. The next prime is 11212013339. The reversal of 11212013291 is 19231021211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11212013291 - 2² = 11212013287 is a prime.

It is not a weakly prime, because it can be changed into another prime (11212013201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606006645 + 5606006646.

It is an arithmetic number, because the mean of its divisors is an integer number (5606006646).

Almost surely, 2^11212013291 is an apocalyptic number.

11212013291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212013291 is an equidigital number, since it uses as much as digits as its factorization.

11212013291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 11212013291 in words is "eleven billion, two hundred twelve million, thirteen thousand, two hundred ninety-one".