11320988 has 12 divisors (see below), whose sum is σ = 22642032. Its totient is φ = 4851840.

The previous prime is 11320973. The next prime is 11321003. The reversal of 11320988 is 88902311.

It is an interprime number because it is at equal distance from previous prime (11320973) and next prime (11321003).

11320988 is an admirable number.

It is a super-2 number, since 2×11320988² = 256329538592288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202133 + ... + 202188.

It is an arithmetic number, because the mean of its divisors is an integer number (1886836).

Almost surely, 2^11320988 is an apocalyptic number.

It is an amenable number.

11320988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11320988 is a wasteful number, since it uses less digits than its factorization.

11320988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404332 (or 404330 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 11320988 is about 3364.6675913082. The cubic root of 11320988 is about 224.5405472040.

The spelling of 11320988 in words is "eleven million, three hundred twenty thousand, nine hundred eighty-eight".