1240412323 has 4 divisors (see below), whose sum is σ = 1240482880. Its totient is φ = 1240341768.

The previous prime is 1240412311. The next prime is 1240412347. The reversal of 1240412323 is 3232140421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1240412323 - 2⁵ = 1240412291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240412294 and 1240412303.

It is not an unprimeable number, because it can be changed into a prime (1240412353) 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, 14593 + ... + 51901.

It is an arithmetic number, because the mean of its divisors is an integer number (310120720).

Almost surely, 2^1240412323 is an apocalyptic number.

1240412323 is a deficient number, since it is larger than the sum of its proper divisors (70557).

1240412323 is an equidigital number, since it uses as much as digits as its factorization.

1240412323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70556.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1240412323 is about 35219.4878298933. The cubic root of 1240412323 is about 1074.4561367939.

Adding to 1240412323 its reverse (3232140421), we get a palindrome (4472552744).

The spelling of 1240412323 in words is "one billion, two hundred forty million, four hundred twelve thousand, three hundred twenty-three".