240403111323 has 4 divisors (see below), whose sum is σ = 320537481768. Its totient is φ = 160268740880.

The previous prime is 240403111307. The next prime is 240403111331. The reversal of 240403111323 is 323111304042.

It is a happy number.

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 240403111323 - 2⁴ = 240403111307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240403111293 and 240403111302.

It is not an unprimeable number, because it can be changed into a prime (240403111343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40067185218 + ... + 40067185223.

It is an arithmetic number, because the mean of its divisors is an integer number (80134370442).

Almost surely, 2^240403111323 is an apocalyptic number.

240403111323 is a deficient number, since it is larger than the sum of its proper divisors (80134370445).

240403111323 is an equidigital number, since it uses as much as digits as its factorization.

240403111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80134370444.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 240403111323 its reverse (323111304042), we get a palindrome (563514415365).

The spelling of 240403111323 in words is "two hundred forty billion, four hundred three million, one hundred eleven thousand, three hundred twenty-three".