11311930 has 16 divisors (see below), whose sum is σ = 23270400. Its totient is φ = 3878352.

The previous prime is 11311907. The next prime is 11311939. The reversal of 11311930 is 3911311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11311898 and 11311907.

It is not an unprimeable number, because it can be changed into a prime (11311939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80730 + ... + 80869.

It is an arithmetic number, because the mean of its divisors is an integer number (1454400).

Almost surely, 2^11311930 is an apocalyptic number.

11311930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311930 is an abundant number, since it is smaller than the sum of its proper divisors (11958470).

11311930 is a wasteful number, since it uses less digits than its factorization.

11311930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161613.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 11311930 is about 3363.3212751683. The cubic root of 11311930 is about 224.4806457489.

The spelling of 11311930 in words is "eleven million, three hundred eleven thousand, nine hundred thirty".