1142431104 has 128 divisors (see below), whose sum is σ = 3162693600. Its totient is φ = 364937216.

The previous prime is 1142431079. The next prime is 1142431111. The reversal of 1142431104 is 4011342411.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926232 + ... + 1926824.

Almost surely, 2^1142431104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142431104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581346800).

1142431104 is an abundant number, since it is smaller than the sum of its proper divisors (2020262496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142431104 is a wasteful number, since it uses less digits than its factorization.

1142431104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1142431104 is about 33799.8684021107. The cubic root of 1142431104 is about 1045.3859838005.

Adding to 1142431104 its reverse (4011342411), we get a palindrome (5153773515).

The spelling of 1142431104 in words is "one billion, one hundred forty-two million, four hundred thirty-one thousand, one hundred four".