1323114521 has 4 divisors (see below), whose sum is σ = 1331231952. Its totient is φ = 1314997092.

The previous prime is 1323114511. The next prime is 1323114563. The reversal of 1323114521 is 1254113231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1254113231 = 7 ⋅179159033.

It is a cyclic number.

It is not a de Polignac number, because 1323114521 - 2²² = 1318920217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323114511) 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, 4058471 + ... + 4058796.

It is an arithmetic number, because the mean of its divisors is an integer number (332807988).

Almost surely, 2^1323114521 is an apocalyptic number.

It is an amenable number.

1323114521 is a deficient number, since it is larger than the sum of its proper divisors (8117431).

1323114521 is an equidigital number, since it uses as much as digits as its factorization.

1323114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8117430.

The product of its digits is 720, while the sum is 23.

The square root of 1323114521 is about 36374.6411803608. The cubic root of 1323114521 is about 1097.8233876296.

Adding to 1323114521 its reverse (1254113231), we get a palindrome (2577227752).

The spelling of 1323114521 in words is "one billion, three hundred twenty-three million, one hundred fourteen thousand, five hundred twenty-one".