16021306313 has 4 divisors (see below), whose sum is σ = 16024017168. Its totient is φ = 16018595460.

The previous prime is 16021306303. The next prime is 16021306333. The reversal of 16021306313 is 31360312061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16021306313 - 2⁴ = 16021306297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16021306303) 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, 1346543 + ... + 1358388.

It is an arithmetic number, because the mean of its divisors is an integer number (4006004292).

Almost surely, 2^16021306313 is an apocalyptic number.

It is an amenable number.

16021306313 is a deficient number, since it is larger than the sum of its proper divisors (2710855).

16021306313 is an equidigital number, since it uses as much as digits as its factorization.

16021306313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710854.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 16021306313 its reverse (31360312061), we get a palindrome (47381618374).

The spelling of 16021306313 in words is "sixteen billion, twenty-one million, three hundred six thousand, three hundred thirteen".