121323122013 has 8 divisors (see below), whose sum is σ = 161772274048. Its totient is φ = 80878025664.

The previous prime is 121323122003. The next prime is 121323122021. The reversal of 121323122013 is 310221323121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121323122013 - 2¹⁸ = 121322859869 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 (121323122003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 943420 + ... + 1064277.

It is an arithmetic number, because the mean of its divisors is an integer number (20221534256).

Almost surely, 2^121323122013 is an apocalyptic number.

It is an amenable number.

121323122013 is a deficient number, since it is larger than the sum of its proper divisors (40449152035).

121323122013 is a wasteful number, since it uses less digits than its factorization.

121323122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027843.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121323122013 its reverse (310221323121), we get a palindrome (431544445134).

The spelling of 121323122013 in words is "one hundred twenty-one billion, three hundred twenty-three million, one hundred twenty-two thousand, thirteen".