11021279 has 2 divisors, whose sum is σ = 11021280. Its totient is φ = 11021278.

The previous prime is 11021261. The next prime is 11021281. The reversal of 11021279 is 97212011.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021279 is a prime.

Together with 11021281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510639 + 5510640.

It is an arithmetic number, because the mean of its divisors is an integer number (5510640).

Almost surely, 2^11021279 is an apocalyptic number.

11021279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021279 is an equidigital number, since it uses as much as digits as its factorization.

11021279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 11021279 is about 3319.8311704061. The cubic root of 11021279 is about 222.5413229650.

The spelling of 11021279 in words is "eleven million, twenty-one thousand, two hundred seventy-nine".