12120504071 has 16 divisors (see below), whose sum is σ = 13277829600. Its totient is φ = 11062269504.

The previous prime is 12120504061. The next prime is 12120504163. The reversal of 12120504071 is 17040502121.

It is not a de Polignac number, because 12120504071 - 2¹⁸ = 12120241927 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 (12120504061) 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, 164540 + ... + 226526.

It is an arithmetic number, because the mean of its divisors is an integer number (829864350).

Almost surely, 2^12120504071 is an apocalyptic number.

12120504071 is a deficient number, since it is larger than the sum of its proper divisors (1157325529).

12120504071 is an frugal number, since it uses more digits than its factorization.

12120504071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62115 (or 62089 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

It can be divided in two parts, 1212050 and 4071, that added together give a palindrome (1216121).

The spelling of 12120504071 in words is "twelve billion, one hundred twenty million, five hundred four thousand, seventy-one".