1326251421336 has 32 divisors (see below), whose sum is σ = 3319488475200. Its totient is φ = 441569150880.

The previous prime is 1326251421317. The next prime is 1326251421337. The reversal of 1326251421336 is 6331241526231.

It is a junction number, because it is equal to n+sod(n) for n = 1326251421294 and 1326251421303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326251421337) 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, 32144970 + ... + 32186201.

It is an arithmetic number, because the mean of its divisors is an integer number (103734014850).

Almost surely, 2^{1326251421336} is an apocalyptic number.

It is an amenable number.

1326251421336 is an abundant number, since it is smaller than the sum of its proper divisors (1993237053864).

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

1326251421336 is a wasteful number, since it uses less digits than its factorization.

1326251421336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64332039 (or 64332035 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

Adding to 1326251421336 its reverse (6331241526231), we get a palindrome (7657492947567).

The spelling of 1326251421336 in words is "one trillion, three hundred twenty-six billion, two hundred fifty-one million, four hundred twenty-one thousand, three hundred thirty-six".