121323221100023 has 4 divisors (see below), whose sum is σ = 121334474540088. Its totient is φ = 121311967659960.

The previous prime is 121323221100017. The next prime is 121323221100047. The reversal of 121323221100023 is 320001122323121.

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 121323221100023 - 2⁶ = 121323221099959 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 (121323221103023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5626703861 + ... + 5626725422.

It is an arithmetic number, because the mean of its divisors is an integer number (30333618635022).

Almost surely, 2^{121323221100023} is an apocalyptic number.

121323221100023 is a deficient number, since it is larger than the sum of its proper divisors (11253440065).

121323221100023 is a wasteful number, since it uses less digits than its factorization.

121323221100023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11253440064.

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

Adding to 121323221100023 its reverse (320001122323121), we get a palindrome (441324343423144).

The spelling of 121323221100023 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, two hundred twenty-one million, one hundred thousand, twenty-three".