111421104524 has 24 divisors (see below), whose sum is σ = 198202418400. Its totient is φ = 54792017280.

The previous prime is 111421104517. The next prime is 111421104583. The reversal of 111421104524 is 425401124111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111421104493 and 111421104502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4193072 + ... + 4219560.

It is an arithmetic number, because the mean of its divisors is an integer number (8258434100).

Almost surely, 2^111421104524 is an apocalyptic number.

It is an amenable number.

111421104524 is a deficient number, since it is larger than the sum of its proper divisors (86781313876).

111421104524 is a wasteful number, since it uses less digits than its factorization.

111421104524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43793 (or 43791 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 111421104524 its reverse (425401124111), we get a palindrome (536822228635).

The spelling of 111421104524 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred four thousand, five hundred twenty-four".