20232120515217 has 16 divisors (see below), whose sum is σ = 29055281351040. Its totient is φ = 12448807967232.

The previous prime is 20232120515177. The next prime is 20232120515221. The reversal of 20232120515217 is 71251502123202.

It is not a de Polignac number, because 20232120515217 - 2²⁰ = 20232119466641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20232120515017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35709792 + ... + 36271937.

It is an arithmetic number, because the mean of its divisors is an integer number (1815955084440).

Almost surely, 2^{20232120515217} is an apocalyptic number.

It is an amenable number.

20232120515217 is a deficient number, since it is larger than the sum of its proper divisors (8823160835823).

20232120515217 is a wasteful number, since it uses less digits than its factorization.

20232120515217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71988952.

The product of its (nonzero) digits is 16800, while the sum is 33.

Adding to 20232120515217 its reverse (71251502123202), we get a palindrome (91483622638419).

The spelling of 20232120515217 in words is "twenty trillion, two hundred thirty-two billion, one hundred twenty million, five hundred fifteen thousand, two hundred seventeen".