1142421112 has 16 divisors (see below), whose sum is σ = 2448045360. Its totient is φ = 489609024.

The previous prime is 1142421103. The next prime is 1142421127. The reversal of 1142421112 is 2111242411.

It is a happy number.

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 1142421112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10200133 + ... + 10200244.

It is an arithmetic number, because the mean of its divisors is an integer number (153002835).

Almost surely, 2^1142421112 is an apocalyptic number.

It is an amenable number.

1142421112 is an abundant number, since it is smaller than the sum of its proper divisors (1305624248).

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

1142421112 is a wasteful number, since it uses less digits than its factorization.

1142421112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400390 (or 20400386 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 1142421112 is about 33799.7205905611. The cubic root of 1142421112 is about 1045.3829360523.

Adding to 1142421112 its reverse (2111242411), we get a palindrome (3253663523).

The spelling of 1142421112 in words is "one billion, one hundred forty-two million, four hundred twenty-one thousand, one hundred twelve".