12512161013 has 8 divisors (see below), whose sum is σ = 13650605760. Its totient is φ = 11373878880.

The previous prime is 12512161009. The next prime is 12512161021. The reversal of 12512161013 is 31016121521.

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

It is a cyclic number.

It is not a de Polignac number, because 12512161013 - 2² = 12512161009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12512161013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512161063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165881 + ... + 229217.

It is an arithmetic number, because the mean of its divisors is an integer number (1706325720).

Almost surely, 2^12512161013 is an apocalyptic number.

It is an amenable number.

12512161013 is a deficient number, since it is larger than the sum of its proper divisors (1138444747).

12512161013 is a wasteful number, since it uses less digits than its factorization.

12512161013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81307.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 12512161013 its reverse (31016121521), we get a palindrome (43528282534).

The spelling of 12512161013 in words is "twelve billion, five hundred twelve million, one hundred sixty-one thousand, thirteen".