111420532424 has 8 divisors (see below), whose sum is σ = 208913498310. Its totient is φ = 55710266208.

The previous prime is 111420532411. The next prime is 111420532463. The reversal of 111420532424 is 424235024111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69100636900 + 42319895524 = 262870^2 + 205718^2 .

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, 6963783269 + ... + 6963783284.

Almost surely, 2^111420532424 is an apocalyptic number.

It is an amenable number.

111420532424 is a deficient number, since it is larger than the sum of its proper divisors (97492965886).

111420532424 is a wasteful number, since it uses less digits than its factorization.

111420532424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13927566559 (or 13927566555 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 111420532424 its reverse (424235024111), we get a palindrome (535655556535).

The spelling of 111420532424 in words is "one hundred eleven billion, four hundred twenty million, five hundred thirty-two thousand, four hundred twenty-four".