1240022323 has 4 divisors (see below), whose sum is σ = 1241372560. Its totient is φ = 1238672088.

The previous prime is 1240022317. The next prime is 1240022341. The reversal of 1240022323 is 3232200421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3232200421 = 1669 ⋅1936609.

It is a cyclic number.

It is not a de Polignac number, because 1240022323 - 2¹³ = 1240014131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240022323.

It is not an unprimeable number, because it can be changed into a prime (1240022353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673740 + ... + 675577.

It is an arithmetic number, because the mean of its divisors is an integer number (310343140).

Almost surely, 2^1240022323 is an apocalyptic number.

1240022323 is a deficient number, since it is larger than the sum of its proper divisors (1350237).

1240022323 is an equidigital number, since it uses as much as digits as its factorization.

1240022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350236.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1240022323 is about 35213.9506871921. The cubic root of 1240022323 is about 1074.3435178391.

Adding to 1240022323 its reverse (3232200421), we get a palindrome (4472222744).

The spelling of 1240022323 in words is "one billion, two hundred forty million, twenty-two thousand, three hundred twenty-three".