12323551 has 2 divisors, whose sum is σ = 12323552. Its totient is φ = 12323550.

The previous prime is 12323537. The next prime is 12323567. The reversal of 12323551 is 15532321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12323551 - 2²¹ = 10226399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12323501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161775 + 6161776.

It is an arithmetic number, because the mean of its divisors is an integer number (6161776).

Almost surely, 2^12323551 is an apocalyptic number.

12323551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323551 is an equidigital number, since it uses as much as digits as its factorization.

12323551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 22.

The square root of 12323551 is about 3510.4915610210. The cubic root of 12323551 is about 230.9822578404.

Adding to 12323551 its reverse (15532321), we get a palindrome (27855872).

The spelling of 12323551 in words is "twelve million, three hundred twenty-three thousand, five hundred fifty-one".