1142420343 has 16 divisors (see below), whose sum is σ = 1548049920. Its totient is φ = 749271744.

The previous prime is 1142420333. The next prime is 1142420347. The reversal of 1142420343 is 3430242411.

It is not a de Polignac number, because 1142420343 - 2¹⁴ = 1142403959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142420347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58555 + ... + 75587.

It is an arithmetic number, because the mean of its divisors is an integer number (96753120).

Almost surely, 2^1142420343 is an apocalyptic number.

1142420343 is a deficient number, since it is larger than the sum of its proper divisors (405629577).

1142420343 is a wasteful number, since it uses less digits than its factorization.

1142420343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17398.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1142420343 is about 33799.7092147255. The cubic root of 1142420343 is about 1045.3827014920.

Adding to 1142420343 its reverse (3430242411), we get a palindrome (4572662754).

The spelling of 1142420343 in words is "one billion, one hundred forty-two million, four hundred twenty thousand, three hundred forty-three".