11143311129 has 16 divisors (see below), whose sum is σ = 16561364800. Its totient is φ = 7405134048.

The previous prime is 11143311071. The next prime is 11143311131. The reversal of 11143311129 is 92111334111.

11143311129 is a `hidden beast` number, since 111 + 433 + 1 + 112 + 9 = 666.

It is not a de Polignac number, because 11143311129 - 2⁹ = 11143310617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143311139) 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, 650839 + ... + 667740.

It is an arithmetic number, because the mean of its divisors is an integer number (1035085300).

Almost surely, 2^11143311129 is an apocalyptic number.

It is an amenable number.

11143311129 is a deficient number, since it is larger than the sum of its proper divisors (5418053671).

11143311129 is a wasteful number, since it uses less digits than its factorization.

11143311129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318901 (or 1318895 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The spelling of 11143311129 in words is "eleven billion, one hundred forty-three million, three hundred eleven thousand, one hundred twenty-nine".