1142040012 has 24 divisors (see below), whose sum is σ = 2665653312. Its totient is φ = 380552400.

The previous prime is 1142039909. The next prime is 1142040023. The reversal of 1142040012 is 2100402411.

It is a junction number, because it is equal to n+sod(n) for n = 1142039973 and 1142040000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25687 + ... + 54257.

It is an arithmetic number, because the mean of its divisors is an integer number (111068888).

Almost surely, 2^1142040012 is an apocalyptic number.

1142040012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142040012 is an abundant number, since it is smaller than the sum of its proper divisors (1523613300).

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

1142040012 is a wasteful number, since it uses less digits than its factorization.

1142040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31909 (or 31907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1142040012 is about 33794.0824997513. The cubic root of 1142040012 is about 1045.2666801051.

Adding to 1142040012 its reverse (2100402411), we get a palindrome (3242442423).

The spelling of 1142040012 in words is "one billion, one hundred forty-two million, forty thousand, twelve".