1142420312 has 16 divisors (see below), whose sum is σ = 2336769000. Its totient is φ = 519281920.

The previous prime is 1142420309. The next prime is 1142420333. The reversal of 1142420312 is 2130242411.

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, 6490937 + ... + 6491112.

Almost surely, 2^1142420312 is an apocalyptic number.

It is an amenable number.

1142420312 is an abundant number, since it is smaller than the sum of its proper divisors (1194348688).

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

1142420312 is a wasteful number, since it uses less digits than its factorization.

1142420312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12982066 (or 12982062 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1142420312 is about 33799.7087561417. The cubic root of 1142420312 is about 1045.3826920364.

Adding to 1142420312 its reverse (2130242411), we get a palindrome (3272662723).

The spelling of 1142420312 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, three hundred twelve".