30111868 has 12 divisors (see below), whose sum is σ = 53921560. Its totient is φ = 14705712.

The previous prime is 30111863. The next prime is 30111869. The reversal of 30111868 is 86811103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87363 + ... + 87706.

Almost surely, 2^30111868 is an apocalyptic number.

It is an amenable number.

30111868 is a deficient number, since it is larger than the sum of its proper divisors (23809692).

30111868 is a wasteful number, since it uses less digits than its factorization.

30111868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175116 (or 175114 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 30111868 is about 5487.4281772065. The cubic root of 30111868 is about 311.1089936175.

The spelling of 30111868 in words is "thirty million, one hundred eleven thousand, eight hundred sixty-eight".