111420350121 has 16 divisors (see below), whose sum is σ = 151375682304. Its totient is φ = 72872851584.

The previous prime is 111420350117. The next prime is 111420350147. The reversal of 111420350121 is 121053024111.

It is not a de Polignac number, because 111420350121 - 2² = 111420350117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111420350101) 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, 2915680 + ... + 2953646.

It is an arithmetic number, because the mean of its divisors is an integer number (9460980144).

Almost surely, 2^111420350121 is an apocalyptic number.

It is an amenable number.

111420350121 is a deficient number, since it is larger than the sum of its proper divisors (39955332183).

111420350121 is a wasteful number, since it uses less digits than its factorization.

111420350121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56480.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 111420350121 its reverse (121053024111), we get a palindrome (232473374232).

The spelling of 111420350121 in words is "one hundred eleven billion, four hundred twenty million, three hundred fifty thousand, one hundred twenty-one".