13220318719351 has 4 divisors (see below), whose sum is σ = 13368861626400. Its totient is φ = 13071775812304.

The previous prime is 13220318719337. The next prime is 13220318719393. The reversal of 13220318719351 is 15391781302231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13220318719351 - 2⁵ = 13220318719319 is a prime.

It is a super-2 number, since 2×13220318719351² (a number of 27 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 (13220318719331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74271453391 + ... + 74271453568.

It is an arithmetic number, because the mean of its divisors is an integer number (3342215406600).

Almost surely, 2^{13220318719351} is an apocalyptic number.

13220318719351 is a deficient number, since it is larger than the sum of its proper divisors (148542907049).

13220318719351 is an equidigital number, since it uses as much as digits as its factorization.

13220318719351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148542907048.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 13220318719351 in words is "thirteen trillion, two hundred twenty billion, three hundred eighteen million, seven hundred nineteen thousand, three hundred fifty-one".