11990311 has 16 divisors (see below), whose sum is σ = 13363200. Its totient is φ = 10711008.

The previous prime is 11990281. The next prime is 11990339. The reversal of 11990311 is 11309911.

It is a cyclic number.

It is not a de Polignac number, because 11990311 - 2⁹ = 11989799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25666 + ... + 26128.

It is an arithmetic number, because the mean of its divisors is an integer number (835200).

Almost surely, 2^11990311 is an apocalyptic number.

11990311 is a deficient number, since it is larger than the sum of its proper divisors (1372889).

11990311 is a wasteful number, since it uses less digits than its factorization.

11990311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11990311 is about 3462.7028460438. The cubic root of 11990311 is about 228.8812144957.

The spelling of 11990311 in words is "eleven million, nine hundred ninety thousand, three hundred eleven".