340120531 has 4 divisors (see below), whose sum is σ = 343942200. Its totient is φ = 336298864.

The previous prime is 340120519. The next prime is 340120541. The reversal of 340120531 is 135021043.

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

It is a cyclic number.

It is not a de Polignac number, because 340120531 - 2¹¹ = 340118483 is a prime.

It is a super-2 number, since 2×340120531² = 231363951215443922, 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 = 340120499 and 340120508.

It is not an unprimeable number, because it can be changed into a prime (340120541) 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, 1910701 + ... + 1910878.

It is an arithmetic number, because the mean of its divisors is an integer number (85985550).

Almost surely, 2^340120531 is an apocalyptic number.

340120531 is a deficient number, since it is larger than the sum of its proper divisors (3821669).

340120531 is an equidigital number, since it uses as much as digits as its factorization.

340120531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821668.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 340120531 is about 18442.3569806031. The cubic root of 340120531 is about 698.0356704348.

Adding to 340120531 its reverse (135021043), we get a palindrome (475141574).

It can be divided in two parts, 3401 and 20531, that added together give a palindrome (23932).

The spelling of 340120531 in words is "three hundred forty million, one hundred twenty thousand, five hundred thirty-one".