20013103111 has 8 divisors (see below), whose sum is σ = 20109841920. Its totient is φ = 19916427192.

The previous prime is 20013103067. The next prime is 20013103141. The reversal of 20013103111 is 11130131002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013103111 is a prime.

It is a super-2 number, since 2×20013103111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20013103091 and 20013103100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013103141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700260 + ... + 728278.

It is an arithmetic number, because the mean of its divisors is an integer number (2513730240).

Almost surely, 2^20013103111 is an apocalyptic number.

20013103111 is a deficient number, since it is larger than the sum of its proper divisors (96738809).

20013103111 is a wasteful number, since it uses less digits than its factorization.

20013103111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31445.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 20013103111 its reverse (11130131002), we get a palindrome (31143234113).

The spelling of 20013103111 in words is "twenty billion, thirteen million, one hundred three thousand, one hundred eleven".