1142123124 has 48 divisors (see below), whose sum is σ = 2815545600. Its totient is φ = 359753856.

The previous prime is 1142123123. The next prime is 1142123161. The reversal of 1142123124 is 4213212411.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1142123124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142123123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18559 + ... + 51270.

It is an arithmetic number, because the mean of its divisors is an integer number (58657200).

Almost surely, 2^1142123124 is an apocalyptic number.

It is an amenable number.

1142123124 is an abundant number, since it is smaller than the sum of its proper divisors (1673422476).

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

1142123124 is a wasteful number, since it uses less digits than its factorization.

1142123124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69912 (or 69910 counting only the distinct ones).

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

The square root of 1142123124 is about 33795.3121601207. The cubic root of 1142123124 is about 1045.2920359292.

Adding to 1142123124 its reverse (4213212411), we get a palindrome (5355335535).

The spelling of 1142123124 in words is "one billion, one hundred forty-two million, one hundred twenty-three thousand, one hundred twenty-four".