20113013313 has 16 divisors (see below), whose sum is σ = 29844304000. Its totient is φ = 13387414320.

The previous prime is 20113013303. The next prime is 20113013339. The reversal of 20113013313 is 31331031102.

It is a happy number.

20113013313 is a `hidden beast` number, since 20 + 11 + 301 + 331 + 3 = 666.

It is not a de Polignac number, because 20113013313 - 2⁸ = 20113013057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20113013303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573238 + ... + 607311.

It is an arithmetic number, because the mean of its divisors is an integer number (1865269000).

Almost surely, 2^20113013313 is an apocalyptic number.

It is an amenable number.

20113013313 is a deficient number, since it is larger than the sum of its proper divisors (9731290687).

20113013313 is a wasteful number, since it uses less digits than its factorization.

20113013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181189 (or 1181183 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20113013313 its reverse (31331031102), we get a palindrome (51444044415).

The spelling of 20113013313 in words is "twenty billion, one hundred thirteen million, thirteen thousand, three hundred thirteen".