10111930 has 16 divisors (see below), whose sum is σ = 18370440. Its totient is φ = 4007232.

The previous prime is 10111903. The next prime is 10111931. The reversal of 10111930 is 3911101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9753129 + 358801 = 3123^2 + 599^2 .

It is a super-2 number, since 2×10111930² = 204502256649800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10111931) 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, 3549 + ... + 5728.

Almost surely, 2^10111930 is an apocalyptic number.

10111930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111930 is a deficient number, since it is larger than the sum of its proper divisors (8258510).

10111930 is a wasteful number, since it uses less digits than its factorization.

10111930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393.

The product of its (nonzero) digits is 27, while the sum is 16.

The square root of 10111930 is about 3179.9260997702. The cubic root of 10111930 is about 216.2443080462.

The spelling of 10111930 in words is "ten million, one hundred eleven thousand, nine hundred thirty".