12151323 has 16 divisors (see below), whose sum is σ = 18061600. Its totient is φ = 8074080.

The previous prime is 12151297. The next prime is 12151343. The reversal of 12151323 is 32315121.

It is not a de Polignac number, because 12151323 - 2⁸ = 12151067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12151296 and 12151305.

It is not an unprimeable number, because it can be changed into a prime (12151343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10833 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (1128850).

Almost surely, 2^12151323 is an apocalyptic number.

12151323 is a deficient number, since it is larger than the sum of its proper divisors (5910277).

12151323 is a wasteful number, since it uses less digits than its factorization.

12151323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499 (or 1493 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 12151323 is about 3485.8747826048. The cubic root of 12151323 is about 229.9011736735.

Adding to 12151323 its reverse (32315121), we get a palindrome (44466444).

The spelling of 12151323 in words is "twelve million, one hundred fifty-one thousand, three hundred twenty-three".