13721311147 has 8 divisors (see below), whose sum is σ = 13951875872. Its totient is φ = 13490928000.

The previous prime is 13721311129. The next prime is 13721311193. The reversal of 13721311147 is 74111312731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13721311147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13721311127) 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, 111523 + ... + 199699.

It is an arithmetic number, because the mean of its divisors is an integer number (1743984484).

Almost surely, 2^13721311147 is an apocalyptic number.

13721311147 is a deficient number, since it is larger than the sum of its proper divisors (230564725).

13721311147 is an equidigital number, since it uses as much as digits as its factorization.

13721311147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90789.

The product of its digits is 3528, while the sum is 31.

Adding to 13721311147 its reverse (74111312731), we get a palindrome (87832623878).

The spelling of 13721311147 in words is "thirteen billion, seven hundred twenty-one million, three hundred eleven thousand, one hundred forty-seven".