121320333023 has 4 divisors (see below), whose sum is σ = 121990611288. Its totient is φ = 120650054760.

The previous prime is 121320332993. The next prime is 121320333031. The reversal of 121320333023 is 320333023121.

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 121320333023 - 2²⁸ = 121051897567 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 121320333023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320333073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335138861 + ... + 335139222.

It is an arithmetic number, because the mean of its divisors is an integer number (30497652822).

Almost surely, 2^121320333023 is an apocalyptic number.

121320333023 is a deficient number, since it is larger than the sum of its proper divisors (670278265).

121320333023 is an equidigital number, since it uses as much as digits as its factorization.

121320333023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670278264.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 121320333023 its reverse (320333023121), we get a palindrome (441653356144).

The spelling of 121320333023 in words is "one hundred twenty-one billion, three hundred twenty million, three hundred thirty-three thousand, twenty-three".