1326244561252 has 48 divisors (see below), whose sum is σ = 2649012735600. Its totient is φ = 575556636672.

The previous prime is 1326244561249. The next prime is 1326244561277. The reversal of 1326244561252 is 2521654426231.

It can be written as a sum of positive squares in 8 ways, for example, as 3505350436 + 1322739210816 = 59206^2 + 1150104^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1326244561199 and 1326244561208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212218 + ... + 1642414.

It is an arithmetic number, because the mean of its divisors is an integer number (55187765325).

Almost surely, 2^{1326244561252} is an apocalyptic number.

It is an amenable number.

1326244561252 is a deficient number, since it is larger than the sum of its proper divisors (1322768174348).

1326244561252 is a wasteful number, since it uses less digits than its factorization.

1326244561252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431280 (or 1431278 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

Adding to 1326244561252 its reverse (2521654426231), we get a palindrome (3847898987483).

The spelling of 1326244561252 in words is "one trillion, three hundred twenty-six billion, two hundred forty-four million, five hundred sixty-one thousand, two hundred fifty-two".