11321870 has 16 divisors (see below), whose sum is σ = 23290848. Its totient is φ = 3881760.

The previous prime is 11321839. The next prime is 11321897. The reversal of 11321870 is 7812311.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80801 + ... + 80940.

It is an arithmetic number, because the mean of its divisors is an integer number (1455678).

Almost surely, 2^11321870 is an apocalyptic number.

11321870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11321870 is an abundant number, since it is smaller than the sum of its proper divisors (11968978).

11321870 is a wasteful number, since it uses less digits than its factorization.

11321870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161755.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11321870 is about 3364.7986566807. The cubic root of 11321870 is about 224.5463782504.

The spelling of 11321870 in words is "eleven million, three hundred twenty-one thousand, eight hundred seventy".