1142420203 has 8 divisors (see below), whose sum is σ = 1148421456. Its totient is φ = 1136428800.

The previous prime is 1142420197. The next prime is 1142420207. The reversal of 1142420203 is 3020242411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142420203 - 2¹⁷ = 1142289131 is a prime.

It is a super-2 number, since 2×1142420203² = 2610247840445122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142420207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364483 + ... + 367603.

It is an arithmetic number, because the mean of its divisors is an integer number (143552682).

Almost surely, 2^1142420203 is an apocalyptic number.

1142420203 is a deficient number, since it is larger than the sum of its proper divisors (6001253).

1142420203 is a wasteful number, since it uses less digits than its factorization.

1142420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1142420203 is about 33799.7071437017. The cubic root of 1142420203 is about 1045.3826587892.

Adding to 1142420203 its reverse (3020242411), we get a palindrome (4162662614).

The spelling of 1142420203 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, two hundred three".