111113030121 has 4 divisors (see below), whose sum is σ = 148150706832. Its totient is φ = 74075353412.

The previous prime is 111113030101. The next prime is 111113030129. The reversal of 111113030121 is 121030311111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111113030121 - 2⁵ = 111113030089 is a prime.

It is a super-2 number, since 2×111113030121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111113030121.

It is not an unprimeable number, because it can be changed into a prime (111113030129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18518838351 + ... + 18518838356.

It is an arithmetic number, because the mean of its divisors is an integer number (37037676708).

Almost surely, 2^111113030121 is an apocalyptic number.

It is an amenable number.

111113030121 is a deficient number, since it is larger than the sum of its proper divisors (37037676711).

111113030121 is an equidigital number, since it uses as much as digits as its factorization.

111113030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037676710.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111113030121 its reverse (121030311111), we get a palindrome (232143341232).

The spelling of 111113030121 in words is "one hundred eleven billion, one hundred thirteen million, thirty thousand, one hundred twenty-one".