111421340105412 has 48 divisors (see below), whose sum is σ = 263646322329600. Its totient is φ = 36617138869920.

The previous prime is 111421340105381. The next prime is 111421340105417. The reversal of 111421340105412 is 214501043124111.

It is a self number, because there is not a number n which added to its sum of digits gives 111421340105412.

It is not an unprimeable number, because it can be changed into a prime (111421340105417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288344389 + ... + 288730547.

It is an arithmetic number, because the mean of its divisors is an integer number (5492631715200).

Almost surely, 2^{111421340105412} is an apocalyptic number.

111421340105412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111421340105412 is an abundant number, since it is smaller than the sum of its proper divisors (152224982224188).

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

111421340105412 is a wasteful number, since it uses less digits than its factorization.

111421340105412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724896 (or 724894 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

Adding to 111421340105412 its reverse (214501043124111), we get a palindrome (325922383229523).

The spelling of 111421340105412 in words is "one hundred eleven trillion, four hundred twenty-one billion, three hundred forty million, one hundred five thousand, four hundred twelve".