1323140528 has 40 divisors (see below), whose sum is σ = 2599385712. Its totient is φ = 652382208.

The previous prime is 1323140519. The next prime is 1323140537. The reversal of 1323140528 is 8250413231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1323140519) and next prime (1323140537).

It is a super-2 number, since 2×1323140528² = 3501401713672237568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1323140528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475076 + ... + 477852.

Almost surely, 2^1323140528 is an apocalyptic number.

It is an amenable number.

1323140528 is a deficient number, since it is larger than the sum of its proper divisors (1276245184).

1323140528 is a wasteful number, since it uses less digits than its factorization.

1323140528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189 (or 3183 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1323140528 is about 36374.9986666666. The cubic root of 1323140528 is about 1097.8305804828.

Adding to 1323140528 its reverse (8250413231), we get a palindrome (9573553759).

The spelling of 1323140528 in words is "one billion, three hundred twenty-three million, one hundred forty thousand, five hundred twenty-eight".