13321001320402 has 8 divisors (see below), whose sum is σ = 19986258361212. Its totient is φ = 6658915200000.

The previous prime is 13321001320399. The next prime is 13321001320453. The reversal of 13321001320402 is 20402310012331.

It can be written as a sum of positive squares in 2 ways, for example, as 10239814400841 + 3081186919561 = 3199971^2 + 1755331^2 .

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

It is a super-2 number, since 2×13321001320402² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792719599 + ... + 792736402.

Almost surely, 2^{13321001320402} is an apocalyptic number.

13321001320402 is a deficient number, since it is larger than the sum of its proper divisors (6665257040810).

13321001320402 is a wasteful number, since it uses less digits than its factorization.

13321001320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585460204.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13321001320402 its reverse (20402310012331), we get a palindrome (33723311332733).

The spelling of 13321001320402 in words is "thirteen trillion, three hundred twenty-one billion, one million, three hundred twenty thousand, four hundred two".