1323142651 has 8 divisors (see below), whose sum is σ = 1377915264. Its totient is φ = 1269125760.

The previous prime is 1323142631. The next prime is 1323142679. The reversal of 1323142651 is 1562413231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323142651 - 2⁷ = 1323142523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323142621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185356 + ... + 192361.

It is an arithmetic number, because the mean of its divisors is an integer number (172239408).

Almost surely, 2^1323142651 is an apocalyptic number.

1323142651 is a deficient number, since it is larger than the sum of its proper divisors (54772613).

1323142651 is a wasteful number, since it uses less digits than its factorization.

1323142651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377861.

The product of its digits is 4320, while the sum is 28.

The square root of 1323142651 is about 36375.0278487866. The cubic root of 1323142651 is about 1097.8311676447.

Adding to 1323142651 its reverse (1562413231), we get a palindrome (2885555882).

The spelling of 1323142651 in words is "one billion, three hundred twenty-three million, one hundred forty-two thousand, six hundred fifty-one".