121111022323 has 4 divisors (see below), whose sum is σ = 121111718728. Its totient is φ = 121110325920.

The previous prime is 121111022317. The next prime is 121111022339. The reversal of 121111022323 is 323220111121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121111022323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121111022323.

It is not an unprimeable number, because it can be changed into a prime (121111022353) 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, 156763 + ... + 516523.

It is an arithmetic number, because the mean of its divisors is an integer number (30277929682).

Almost surely, 2^121111022323 is an apocalyptic number.

121111022323 is a deficient number, since it is larger than the sum of its proper divisors (696405).

121111022323 is an equidigital number, since it uses as much as digits as its factorization.

121111022323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696404.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121111022323 its reverse (323220111121), we get a palindrome (444331133444).

The spelling of 121111022323 in words is "one hundred twenty-one billion, one hundred eleven million, twenty-two thousand, three hundred twenty-three".