142231011 has 16 divisors (see below), whose sum is σ = 213110016. Its totient is φ = 83720736.

The previous prime is 142230973. The next prime is 142231013. The reversal of 142231011 is 110132241.

142231011 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 142231011 - 2¹⁹ = 141706723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142231013) 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, 78385 + ... + 80178.

It is an arithmetic number, because the mean of its divisors is an integer number (13319376).

Almost surely, 2^142231011 is an apocalyptic number.

142231011 is a deficient number, since it is larger than the sum of its proper divisors (70879005).

142231011 is a wasteful number, since it uses less digits than its factorization.

142231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158602.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 142231011 is about 11926.0643550167. The cubic root of 142231011 is about 521.9931040912.

Adding to 142231011 its reverse (110132241), we get a palindrome (252363252).

The spelling of 142231011 in words is "one hundred forty-two million, two hundred thirty-one thousand, eleven".