1323421152 has 48 divisors (see below), whose sum is σ = 3489615360. Its totient is φ = 439155072.

The previous prime is 1323421133. The next prime is 1323421157. The reversal of 1323421152 is 2511243231.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1323421152² = 3502887091122014208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323421157) 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, 9502 + ... + 52317.

It is an arithmetic number, because the mean of its divisors is an integer number (72700320).

Almost surely, 2^1323421152 is an apocalyptic number.

1323421152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1323421152 is an abundant number, since it is smaller than the sum of its proper divisors (2166194208).

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

1323421152 is a wasteful number, since it uses less digits than its factorization.

1323421152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62055 (or 62047 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1323421152 is about 36378.8558368732. The cubic root of 1323421152 is about 1097.9081877173.

Adding to 1323421152 its reverse (2511243231), we get a palindrome (3834664383).

The spelling of 1323421152 in words is "one billion, three hundred twenty-three million, four hundred twenty-one thousand, one hundred fifty-two".