1242323 has 4 divisors (see below), whose sum is σ = 1246560. Its totient is φ = 1238088.

The previous prime is 1242317. The next prime is 1242347. The reversal of 1242323 is 3232421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3232421 = 353 ⋅9157.

It is a cyclic number.

It is not a de Polignac number, because 1242323 - 2⁸ = 1242067 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242623) 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, 1643 + ... + 2276.

It is an arithmetic number, because the mean of its divisors is an integer number (311640).

2^1242323 is an apocalyptic number.

1242323 is a deficient number, since it is larger than the sum of its proper divisors (4237).

1242323 is an equidigital number, since it uses as much as digits as its factorization.

1242323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its digits is 288, while the sum is 17.

The square root of 1242323 is about 1114.5954423018. The cubic root of 1242323 is about 107.5007535552.

Adding to 1242323 its reverse (3232421), we get a palindrome (4474744).

The spelling of 1242323 in words is "one million, two hundred forty-two thousand, three hundred twenty-three".