142303431 has 8 divisors (see below), whose sum is σ = 189963760. Its totient is φ = 94756032.

The previous prime is 142303429. The next prime is 142303439. The reversal of 142303431 is 134303241.

142303431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 142303431 - 2¹ = 142303429 is a prime.

It is a super-2 number, since 2×142303431² = 40500532948743522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142303398 and 142303407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142303439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25246 + ... + 30363.

It is an arithmetic number, because the mean of its divisors is an integer number (23745470).

Almost surely, 2^142303431 is an apocalyptic number.

142303431 is a deficient number, since it is larger than the sum of its proper divisors (47660329).

142303431 is an equidigital number, since it uses as much as digits as its factorization.

142303431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56465.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 142303431 is about 11929.1001756210. The cubic root of 142303431 is about 522.0816837573.

Adding to 142303431 its reverse (134303241), we get a palindrome (276606672).

The spelling of 142303431 in words is "one hundred forty-two million, three hundred three thousand, four hundred thirty-one".