1442310231 has 4 divisors (see below), whose sum is σ = 1923080312. Its totient is φ = 961540152.

The previous prime is 1442310217. The next prime is 1442310239. The reversal of 1442310231 is 1320132441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1442310231 - 2¹⁰ = 1442309207 is a prime.

It is a super-2 number, since 2×1442310231² = 4160517604894546722, 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 = 1442310198 and 1442310207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442310239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240385036 + ... + 240385041.

It is an arithmetic number, because the mean of its divisors is an integer number (480770078).

Almost surely, 2^1442310231 is an apocalyptic number.

1442310231 is a deficient number, since it is larger than the sum of its proper divisors (480770081).

1442310231 is an equidigital number, since it uses as much as digits as its factorization.

1442310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480770080.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1442310231 is about 37977.7596890601. The cubic root of 1442310231 is about 1129.8468038331.

Adding to 1442310231 its reverse (1320132441), we get a palindrome (2762442672).

The spelling of 1442310231 in words is "one billion, four hundred forty-two million, three hundred ten thousand, two hundred thirty-one".