121021310123013 has 32 divisors (see below), whose sum is σ = 169324380997632. Its totient is φ = 76805556220800.

The previous prime is 121021310122847. The next prime is 121021310123069. The reversal of 121021310123013 is 310321013120121.

It is not a de Polignac number, because 121021310123013 - 2³⁰ = 121020236381189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021310123093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29709331 + ... + 33536352.

It is an arithmetic number, because the mean of its divisors is an integer number (5291386906176).

Almost surely, 2^{121021310123013} is an apocalyptic number.

It is an amenable number.

121021310123013 is a deficient number, since it is larger than the sum of its proper divisors (48303070874619).

121021310123013 is a wasteful number, since it uses less digits than its factorization.

121021310123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63246105.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121021310123013 its reverse (310321013120121), we get a palindrome (431342323243134).

The spelling of 121021310123013 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred ten million, one hundred twenty-three thousand, thirteen".