340320131 has 12 divisors (see below), whose sum is σ = 350375496. Its totient is φ = 330545280.

The previous prime is 340320089. The next prime is 340320143. The reversal of 340320131 is 131023043.

It is a happy number.

It is not a de Polignac number, because 340320131 - 2⁶ = 340320067 is a prime.

It is a super-2 number, since 2×340320131² = 231635583127714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340320031) 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, 744455 + ... + 744911.

It is an arithmetic number, because the mean of its divisors is an integer number (29197958).

Almost surely, 2^340320131 is an apocalyptic number.

340320131 is a deficient number, since it is larger than the sum of its proper divisors (10055365).

340320131 is an equidigital number, since it uses as much as digits as its factorization.

340320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 340320131 is about 18447.7676427258. The cubic root of 340320131 is about 698.1721913258.

Adding to 340320131 its reverse (131023043), we get a palindrome (471343174).

The spelling of 340320131 in words is "three hundred forty million, three hundred twenty thousand, one hundred thirty-one".