142243011 has 24 divisors (see below), whose sum is σ = 211411200. Its totient is φ = 92108016.

The previous prime is 142242917. The next prime is 142243019. The reversal of 142243011 is 110342241.

142243011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142243011 - 2¹⁹ = 141718723 is a prime.

It is a super-2 number, since 2×142243011² = 40466148356692242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142243019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76090 + ... + 77936.

It is an arithmetic number, because the mean of its divisors is an integer number (8808800).

Almost surely, 2^142243011 is an apocalyptic number.

142243011 is a deficient number, since it is larger than the sum of its proper divisors (69168189).

142243011 is a wasteful number, since it uses less digits than its factorization.

142243011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142243011 is about 11926.5674441559. The cubic root of 142243011 is about 522.0077838272.

Adding to 142243011 its reverse (110342241), we get a palindrome (252585252).

The spelling of 142243011 in words is "one hundred forty-two million, two hundred forty-three thousand, eleven".