1323540513530 has 8 divisors (see below), whose sum is σ = 2382372924372. Its totient is φ = 529416205408.

The previous prime is 1323540513521. The next prime is 1323540513563. The reversal of 1323540513530 is 353150453231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1318783514689 + 4756998841 = 1148383^2 + 68971^2 .

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

It is a super-2 number, since 2×1323540513530² (a number of 25 digits) contains 22 as substring.

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, 66177025667 + ... + 66177025686.

Almost surely, 2^{1323540513530} is an apocalyptic number.

1323540513530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323540513530 is a deficient number, since it is larger than the sum of its proper divisors (1058832410842).

1323540513530 is a wasteful number, since it uses less digits than its factorization.

1323540513530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132354051360.

The product of its (nonzero) digits is 81000, while the sum is 35.

Adding to 1323540513530 its reverse (353150453231), we get a palindrome (1676690966761).

The spelling of 1323540513530 in words is "one trillion, three hundred twenty-three billion, five hundred forty million, five hundred thirteen thousand, five hundred thirty".