20120317055207 has 8 divisors (see below), whose sum is σ = 21304151658000. Its totient is φ = 18936514290304.

The previous prime is 20120317055161. The next prime is 20120317055227. The reversal of 20120317055207 is 70255071302102.

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

It is not a de Polignac number, because 20120317055207 - 2²⁶ = 20120249946343 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 (20120317055227) 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, 6652232 + ... + 9191997.

It is an arithmetic number, because the mean of its divisors is an integer number (2663018957250).

Almost surely, 2^{20120317055207} is an apocalyptic number.

20120317055207 is a deficient number, since it is larger than the sum of its proper divisors (1183834602793).

20120317055207 is a wasteful number, since it uses less digits than its factorization.

20120317055207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918945.

The product of its (nonzero) digits is 29400, while the sum is 35.

Adding to 20120317055207 its reverse (70255071302102), we get a palindrome (90375388357309).

The spelling of 20120317055207 in words is "twenty trillion, one hundred twenty billion, three hundred seventeen million, fifty-five thousand, two hundred seven".