1321524641213 has 12 divisors (see below), whose sum is σ = 1573034554080. Its totient is φ = 1106392721112.

The previous prime is 1321524641209. The next prime is 1321524641219. The reversal of 1321524641213 is 3121464251231.

It is not a de Polignac number, because 1321524641213 - 2² = 1321524641209 is a prime.

It is a super-2 number, since 2×1321524641213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321524641219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313601273 + ... + 313605486.

It is an arithmetic number, because the mean of its divisors is an integer number (131086212840).

Almost surely, 2^{1321524641213} is an apocalyptic number.

It is an amenable number.

1321524641213 is a deficient number, since it is larger than the sum of its proper divisors (251509912867).

1321524641213 is an equidigital number, since it uses as much as digits as its factorization.

1321524641213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627206816 (or 627206809 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

Adding to 1321524641213 its reverse (3121464251231), we get a palindrome (4442988892444).

The spelling of 1321524641213 in words is "one trillion, three hundred twenty-one billion, five hundred twenty-four million, six hundred forty-one thousand, two hundred thirteen".