111121101313 has 4 divisors (see below), whose sum is σ = 115952453568. Its totient is φ = 106289749060.

The previous prime is 111121101271. The next prime is 111121101331. The reversal of 111121101313 is 313101121111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313101121111 = 227 ⋅1379300093.

It is a cyclic number.

It is not a de Polignac number, because 111121101313 - 2⁹ = 111121100801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121101353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415676093 + ... + 2415676138.

It is an arithmetic number, because the mean of its divisors is an integer number (28988113392).

Almost surely, 2^111121101313 is an apocalyptic number.

It is an amenable number.

111121101313 is a deficient number, since it is larger than the sum of its proper divisors (4831352255).

111121101313 is an equidigital number, since it uses as much as digits as its factorization.

111121101313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831352254.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111121101313 its reverse (313101121111), we get a palindrome (424222222424).

The spelling of 111121101313 in words is "one hundred eleven billion, one hundred twenty-one million, one hundred one thousand, three hundred thirteen".