240320723 has 4 divisors (see below), whose sum is σ = 240518448. Its totient is φ = 240123000.

The previous prime is 240320719. The next prime is 240320741. The reversal of 240320723 is 327023042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327023042 = 2 ⋅163511521.

It is a cyclic number.

It is not a de Polignac number, because 240320723 - 2² = 240320719 is a prime.

It is a super-3 number, since 3×240320723³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240320023) 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, 97028 + ... + 99473.

It is an arithmetic number, because the mean of its divisors is an integer number (60129612).

Almost surely, 2^240320723 is an apocalyptic number.

240320723 is a deficient number, since it is larger than the sum of its proper divisors (197725).

240320723 is a wasteful number, since it uses less digits than its factorization.

240320723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197724.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 240320723 is about 15502.2812192271. The cubic root of 240320723 is about 621.7232004529.

Adding to 240320723 its reverse (327023042), we get a palindrome (567343765).

The spelling of 240320723 in words is "two hundred forty million, three hundred twenty thousand, seven hundred twenty-three".