111620053412 has 12 divisors (see below), whose sum is σ = 223240106880. Its totient is φ = 47837165736.

The previous prime is 111620053397. The next prime is 111620053439. The reversal of 111620053412 is 214350026111.

111620053412 is an admirable 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, 1993215212 + ... + 1993215267.

It is an arithmetic number, because the mean of its divisors is an integer number (18603342240).

Almost surely, 2^111620053412 is an apocalyptic number.

It is an amenable number.

111620053412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111620053412 is a wasteful number, since it uses less digits than its factorization.

111620053412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986430490 (or 3986430488 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 111620053412 its reverse (214350026111), we get a palindrome (325970079523).

The spelling of 111620053412 in words is "one hundred eleven billion, six hundred twenty million, fifty-three thousand, four hundred twelve".