11921230 has 16 divisors (see below), whose sum is σ = 21811104. Its totient is φ = 4690080.

The previous prime is 11921219. The next prime is 11921251. The reversal of 11921230 is 3212911.

It is a junction number, because it is equal to n+sod(n) for n = 11921198 and 11921207.

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, 9162 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (1363194).

Almost surely, 2^11921230 is an apocalyptic number.

11921230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11921230 is a deficient number, since it is larger than the sum of its proper divisors (9889874).

11921230 is a wasteful number, since it uses less digits than its factorization.

11921230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19611.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11921230 is about 3452.7134256987. The cubic root of 11921230 is about 228.4408087405.

The spelling of 11921230 in words is "eleven million, nine hundred twenty-one thousand, two hundred thirty".