13144123311 has 16 divisors (see below), whose sum is σ = 19204469760. Its totient is φ = 7930408320.

The previous prime is 13144123301. The next prime is 13144123313. The reversal of 13144123311 is 11332144131.

It is a happy number.

It is not a de Polignac number, because 13144123311 - 2⁶ = 13144123247 is a prime.

It is a super-2 number, since 2×13144123311² (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 (13144123313) 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, 885706 + ... + 900423.

It is an arithmetic number, because the mean of its divisors is an integer number (1200279360).

Almost surely, 2^13144123311 is an apocalyptic number.

13144123311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13144123311 is a deficient number, since it is larger than the sum of its proper divisors (6060346449).

13144123311 is a wasteful number, since it uses less digits than its factorization.

13144123311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786366.

The product of its digits is 864, while the sum is 24.

Adding to 13144123311 its reverse (11332144131), we get a palindrome (24476267442).

The spelling of 13144123311 in words is "thirteen billion, one hundred forty-four million, one hundred twenty-three thousand, three hundred eleven".