9013212013 has 4 divisors (see below), whose sum is σ = 9706536028. Its totient is φ = 8319888000.

The previous prime is 9013212007. The next prime is 9013212017. The reversal of 9013212013 is 3102123109.

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 1114090884 + 7899121129 = 33378^2 + 88877^2 .

It is a cyclic number.

It is not a de Polignac number, because 9013212013 - 2⁵ = 9013211981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9013212017) 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, 346661988 + ... + 346662013.

It is an arithmetic number, because the mean of its divisors is an integer number (2426634007).

Almost surely, 2^9013212013 is an apocalyptic number.

It is an amenable number.

9013212013 is a deficient number, since it is larger than the sum of its proper divisors (693324015).

9013212013 is a wasteful number, since it uses less digits than its factorization.

9013212013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693324014.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 9013212013 is about 94937.9376908936. The cubic root of 9013212013 is about 2081.1011807389.

The spelling of 9013212013 in words is "nine billion, thirteen million, two hundred twelve thousand, thirteen".