121320320011223 has 4 divisors (see below), whose sum is σ = 121323872929080. Its totient is φ = 121316767093368.

The previous prime is 121320320011211. The next prime is 121320320011243. The reversal of 121320320011223 is 322110023023121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121320320011223 - 2²⁴ = 121320303234007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320320011243) 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, 1776407708 + ... + 1776476001.

It is an arithmetic number, because the mean of its divisors is an integer number (30330968232270).

Almost surely, 2^{121320320011223} is an apocalyptic number.

121320320011223 is a deficient number, since it is larger than the sum of its proper divisors (3552917857).

121320320011223 is an equidigital number, since it uses as much as digits as its factorization.

121320320011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552917856.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121320320011223 its reverse (322110023023121), we get a palindrome (443430343034344).

The spelling of 121320320011223 in words is "one hundred twenty-one trillion, three hundred twenty billion, three hundred twenty million, eleven thousand, two hundred twenty-three".