111421104536 has 16 divisors (see below), whose sum is σ = 238759509840. Its totient is φ = 47751901920.

The previous prime is 111421104517. The next prime is 111421104583. The reversal of 111421104536 is 635401124111.

It is a junction number, because it is equal to n+sod(n) for n = 111421104499 and 111421104508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994831235 + ... + 994831346.

It is an arithmetic number, because the mean of its divisors is an integer number (14922469365).

Almost surely, 2^111421104536 is an apocalyptic number.

It is an amenable number.

111421104536 is an abundant number, since it is smaller than the sum of its proper divisors (127338405304).

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

111421104536 is a wasteful number, since it uses less digits than its factorization.

111421104536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989662594 (or 1989662590 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 111421104536 its reverse (635401124111), we get a palindrome (746822228647).

The spelling of 111421104536 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred four thousand, five hundred thirty-six".