1323214520 has 16 divisors (see below), whose sum is σ = 2977232760. Its totient is φ = 529285792.

The previous prime is 1323214517. The next prime is 1323214561. The reversal of 1323214520 is 254123231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16540142 + ... + 16540221.

Almost surely, 2^1323214520 is an apocalyptic number.

1323214520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323214520 is an abundant number, since it is smaller than the sum of its proper divisors (1654018240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323214520 is a wasteful number, since it uses less digits than its factorization.

1323214520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33080374 (or 33080370 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1323214520 is about 36376.0157246502. The cubic root of 1323214520 is about 1097.8510442115.

Adding to 1323214520 its reverse (254123231), we get a palindrome (1577337751).

The spelling of 1323214520 in words is "one billion, three hundred twenty-three million, two hundred fourteen thousand, five hundred twenty".