30111132 has 24 divisors (see below), whose sum is σ = 70560000. Its totient is φ = 9994096.

The previous prime is 30111121. The next prime is 30111139. The reversal of 30111132 is 23111103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382 + ... + 8117.

It is an arithmetic number, because the mean of its divisors is an integer number (2940000).

Almost surely, 2^30111132 is an apocalyptic number.

It is an amenable number.

30111132 is an abundant number, since it is smaller than the sum of its proper divisors (40448868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30111132 is a wasteful number, since it uses less digits than its factorization.

30111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10745 (or 10743 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 30111132 is about 5487.3611144156. The cubic root of 30111132 is about 311.1064588685.

Adding to 30111132 its reverse (23111103), we get a palindrome (53222235).

The spelling of 30111132 in words is "thirty million, one hundred eleven thousand, one hundred thirty-two".