1142421312 has 56 divisors (see below), whose sum is σ = 3027578400. Its totient is φ = 380187136.

The previous prime is 1142421289. The next prime is 1142421337. The reversal of 1142421312 is 2131242411.

It is a super-2 number, since 2×1142421312² = 2610252908223602688, which contains 22 as substring.

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

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, 122014 + ... + 131042.

It is an arithmetic number, because the mean of its divisors is an integer number (54063900).

Almost surely, 2^1142421312 is an apocalyptic number.

1142421312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142421312 is an abundant number, since it is smaller than the sum of its proper divisors (1885157088).

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

1142421312 is an equidigital number, since it uses as much as digits as its factorization.

1142421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9703 (or 9693 counting only the distinct ones).

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

The square root of 1142421312 is about 33799.7235491653. The cubic root of 1142421312 is about 1045.3829970562.

Adding to 1142421312 its reverse (2131242411), we get a palindrome (3273663723).

The spelling of 1142421312 in words is "one billion, one hundred forty-two million, four hundred twenty-one thousand, three hundred twelve".