111302313121 has 4 divisors (see below), whose sum is σ = 111698407044. Its totient is φ = 110906219200.

The previous prime is 111302313077. The next prime is 111302313127. The reversal of 111302313121 is 121313203111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121313203111 = 827 ⋅146690693.

It can be written as a sum of positive squares in 2 ways, for example, as 95842872225 + 15459440896 = 309585^2 + 124336^2 .

It is a cyclic number.

It is not a de Polignac number, because 111302313121 - 2¹³ = 111302304929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111302313127) 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, 198046540 + ... + 198047101.

It is an arithmetic number, because the mean of its divisors is an integer number (27924601761).

Almost surely, 2^111302313121 is an apocalyptic number.

It is an amenable number.

111302313121 is a deficient number, since it is larger than the sum of its proper divisors (396093923).

111302313121 is an equidigital number, since it uses as much as digits as its factorization.

111302313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396093922.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111302313121 its reverse (121313203111), we get a palindrome (232615516232).

The spelling of 111302313121 in words is "one hundred eleven billion, three hundred two million, three hundred thirteen thousand, one hundred twenty-one".