11931130 has 16 divisors (see below), whose sum is σ = 21690504. Its totient is φ = 4724800.

The previous prime is 11931121. The next prime is 11931163. The reversal of 11931130 is 3113911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11336689 + 594441 = 3367^2 + 771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11931098 and 11931107.

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, 4897 + ... + 6916.

Almost surely, 2^11931130 is an apocalyptic number.

11931130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11931130 is a deficient number, since it is larger than the sum of its proper divisors (9759374).

11931130 is a wasteful number, since it uses less digits than its factorization.

11931130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921.

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

The square root of 11931130 is about 3454.1467832158. The cubic root of 11931130 is about 228.5040275598.

The spelling of 11931130 in words is "eleven million, nine hundred thirty-one thousand, one hundred thirty".