111232140424 has 8 divisors (see below), whose sum is σ = 208560263310. Its totient is φ = 55616070208.

The previous prime is 111232140403. The next prime is 111232140463. The reversal of 111232140424 is 424041232111.

It can be written as a sum of positive squares in only one way, i.e., 71144892900 + 40087247524 = 266730^2 + 200218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6952008769 + ... + 6952008784.

Almost surely, 2^111232140424 is an apocalyptic number.

It is an amenable number.

111232140424 is a deficient number, since it is larger than the sum of its proper divisors (97328122886).

111232140424 is a wasteful number, since it uses less digits than its factorization.

111232140424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904017559 (or 13904017555 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111232140424 its reverse (424041232111), we get a palindrome (535273372535).

The spelling of 111232140424 in words is "one hundred eleven billion, two hundred thirty-two million, one hundred forty thousand, four hundred twenty-four".