142303131 has 12 divisors (see below), whose sum is σ = 205830352. Its totient is φ = 94738896.

The previous prime is 142303129. The next prime is 142303151. The reversal of 142303131 is 131303241.

It is not a de Polignac number, because 142303131 - 2¹ = 142303129 is a prime.

It is a super-2 number, since 2×142303131² = 40500362184806322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142303111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3631 + ... + 17256.

Almost surely, 2^142303131 is an apocalyptic number.

142303131 is a deficient number, since it is larger than the sum of its proper divisors (63527221).

142303131 is a wasteful number, since it uses less digits than its factorization.

142303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21650 (or 21647 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 142303131 is about 11929.0876013214. The cubic root of 142303131 is about 522.0813168778.

Adding to 142303131 its reverse (131303241), we get a palindrome (273606372).

The spelling of 142303131 in words is "one hundred forty-two million, three hundred three thousand, one hundred thirty-one".