13120001144 has 16 divisors (see below), whose sum is σ = 25894739400. Its totient is φ = 6214737312.

The previous prime is 13120001143. The next prime is 13120001177. The reversal of 13120001144 is 44110002131.

It is a happy number.

It is a super-2 number, since 2×13120001144² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120001143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43157747 + ... + 43158050.

Almost surely, 2^13120001144 is an apocalyptic number.

It is an amenable number.

13120001144 is a deficient number, since it is larger than the sum of its proper divisors (12774738256).

13120001144 is a wasteful number, since it uses less digits than its factorization.

13120001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86315822 (or 86315818 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13120001144 its reverse (44110002131), we get a palindrome (57230003275).

The spelling of 13120001144 in words is "thirteen billion, one hundred twenty million, one thousand, one hundred forty-four".