11859311 has 2 divisors, whose sum is σ = 11859312. Its totient is φ = 11859310.

The previous prime is 11859307. The next prime is 11859349. The reversal of 11859311 is 11395811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11859311 - 2² = 11859307 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11859371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5929655 + 5929656.

It is an arithmetic number, because the mean of its divisors is an integer number (5929656).

Almost surely, 2^11859311 is an apocalyptic number.

11859311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11859311 is an equidigital number, since it uses as much as digits as its factorization.

11859311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 29.

The square root of 11859311 is about 3443.7350362651. The cubic root of 11859311 is about 228.0446139740.

The spelling of 11859311 in words is "eleven million, eight hundred fifty-nine thousand, three hundred eleven".