3013281220513 has 4 divisors (see below), whose sum is σ = 3013305119380. Its totient is φ = 3013257321648.

The previous prime is 3013281220457. The next prime is 3013281220553. The reversal of 3013281220513 is 3150221823103.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1850533077649 + 1162748142864 = 1360343^2 + 1078308^2 .

It is a cyclic number.

It is not a de Polignac number, because 3013281220513 - 2³⁷ = 2875842267041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3013281220553) 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, 11759298 + ... + 12012811.

It is an arithmetic number, because the mean of its divisors is an integer number (753326279845).

Almost surely, 2^{3013281220513} is an apocalyptic number.

It is an amenable number.

3013281220513 is a deficient number, since it is larger than the sum of its proper divisors (23898867).

3013281220513 is a wasteful number, since it uses less digits than its factorization.

3013281220513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898866.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 3013281220513 in words is "three trillion, thirteen billion, two hundred eighty-one million, two hundred twenty thousand, five hundred thirteen".