111021400123404 has 12 divisors (see below), whose sum is σ = 259049933621304. Its totient is φ = 37007133374464.

The previous prime is 111021400123397. The next prime is 111021400123477. The reversal of 111021400123404 is 404321004120111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 4625891671797 + ... + 4625891671820.

It is an arithmetic number, because the mean of its divisors is an integer number (21587494468442).

Almost surely, 2^{111021400123404} is an apocalyptic number.

It is an amenable number.

111021400123404 is an abundant number, since it is smaller than the sum of its proper divisors (148028533497900).

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

111021400123404 is a wasteful number, since it uses less digits than its factorization.

111021400123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251783343624 (or 9251783343622 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 111021400123404 its reverse (404321004120111), we get a palindrome (515342404243515).

The spelling of 111021400123404 in words is "one hundred eleven trillion, twenty-one billion, four hundred million, one hundred twenty-three thousand, four hundred four".