11434431142 has 16 divisors (see below), whose sum is σ = 17315060400. Its totient is φ = 5662781280.

The previous prime is 11434431133. The next prime is 11434431181. The reversal of 11434431142 is 24113443411.

It is a super-2 number, since 2×11434431142² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11434431142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764092 + ... + 778912.

It is an arithmetic number, because the mean of its divisors is an integer number (1082191275).

Almost surely, 2^11434431142 is an apocalyptic number.

11434431142 is a deficient number, since it is larger than the sum of its proper divisors (5880629258).

11434431142 is a wasteful number, since it uses less digits than its factorization.

11434431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18471.

The product of its digits is 4608, while the sum is 28.

Adding to 11434431142 its reverse (24113443411), we get a palindrome (35547874553).

The spelling of 11434431142 in words is "eleven billion, four hundred thirty-four million, four hundred thirty-one thousand, one hundred forty-two".