320131342 has 32 divisors (see below), whose sum is σ = 537477120. Its totient is φ = 142290720.

The previous prime is 320131333. The next prime is 320131387. The reversal of 320131342 is 243131023.

It is a super-2 number, since 2×320131342² = 204968152261441928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42867 + ... + 49777.

It is an arithmetic number, because the mean of its divisors is an integer number (16796160).

Almost surely, 2^320131342 is an apocalyptic number.

320131342 is a deficient number, since it is larger than the sum of its proper divisors (217345778).

320131342 is a wasteful number, since it uses less digits than its factorization.

320131342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320131342 is about 17892.2145638822. The cubic root of 320131342 is about 684.0839457292.

Adding to 320131342 its reverse (243131023), we get a palindrome (563262365).

It can be divided in two parts, 3201 and 31342, that added together give a palindrome (34543).

The spelling of 320131342 in words is "three hundred twenty million, one hundred thirty-one thousand, three hundred forty-two".