13000010861 has 8 divisors (see below), whose sum is σ = 13081240800. Its totient is φ = 12918876880.

The previous prime is 13000010833. The next prime is 13000010867. The reversal of 13000010861 is 16801000031.

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 13000010861 - 2³⁰ = 11926269037 is a prime.

It is a super-2 number, since 2×13000010861² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000010867) 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, 258095 + ... + 304323.

It is an arithmetic number, because the mean of its divisors is an integer number (1635155100).

Almost surely, 2^13000010861 is an apocalyptic number.

It is an amenable number.

13000010861 is a deficient number, since it is larger than the sum of its proper divisors (81229939).

13000010861 is a wasteful number, since it uses less digits than its factorization.

13000010861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47979.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13000010861 its reverse (16801000031), we get a palindrome (29801010892).

The spelling of 13000010861 in words is "thirteen billion, ten thousand, eight hundred sixty-one".