30111132144 has 20 divisors (see below), whose sum is σ = 77787091496. Its totient is φ = 10037044032.

The previous prime is 30111132143. The next prime is 30111132169. The reversal of 30111132144 is 44123111103.

It is a self number, because there is not a number n which added to its sum of digits gives 30111132144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111132143) 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, 313657579 + ... + 313657674.

Almost surely, 2^30111132144 is an apocalyptic number.

It is an amenable number.

30111132144 is an abundant number, since it is smaller than the sum of its proper divisors (47675959352).

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

30111132144 is a wasteful number, since it uses less digits than its factorization.

30111132144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627315264 (or 627315258 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 30111132144 its reverse (44123111103), we get a palindrome (74234243247).

The spelling of 30111132144 in words is "thirty billion, one hundred eleven million, one hundred thirty-two thousand, one hundred forty-four".