16313033000521 has 2 divisors, whose sum is σ = 16313033000522. Its totient is φ = 16313033000520.

The previous prime is 16313033000507. The next prime is 16313033000549. The reversal of 16313033000521 is 12500033031361.

It is an a-pointer prime, because the next prime (16313033000549) can be obtained adding 16313033000521 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10218731055625 + 6094301944896 = 3196675^2 + 2468664^2 .

It is a cyclic number.

It is not a de Polignac number, because 16313033000521 - 2³¹ = 16310885516873 is a prime.

It is a super-2 number, since 2×16313033000521² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16313033000521.

It is not a weakly prime, because it can be changed into another prime (16313033000591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156516500260 + 8156516500261.

It is an arithmetic number, because the mean of its divisors is an integer number (8156516500261).

Almost surely, 2^{16313033000521} is an apocalyptic number.

It is an amenable number.

16313033000521 is a deficient number, since it is larger than the sum of its proper divisors (1).

16313033000521 is an equidigital number, since it uses as much as digits as its factorization.

16313033000521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 16313033000521 its reverse (12500033031361), we get a palindrome (28813066031882).

The spelling of 16313033000521 in words is "sixteen trillion, three hundred thirteen billion, thirty-three million, five hundred twenty-one", and thus it is an aban number.