20111313333031 has 16 divisors (see below), whose sum is σ = 21626856115200. Its totient is φ = 18666036388800.

The previous prime is 20111313333011. The next prime is 20111313333047. The reversal of 20111313333031 is 13033331311102.

It is a cyclic number.

It is not a de Polignac number, because 20111313333031 - 2²⁵ = 20111279778599 is a prime.

It is a super-2 number, since 2×20111313333031² (a number of 27 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 = 20111313332987 and 20111313333005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111313333011) 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, 134020101 + ... + 134170078.

It is an arithmetic number, because the mean of its divisors is an integer number (1351678507200).

Almost surely, 2^{20111313333031} is an apocalyptic number.

20111313333031 is a deficient number, since it is larger than the sum of its proper divisors (1515542782169).

20111313333031 is a wasteful number, since it uses less digits than its factorization.

20111313333031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268190310.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 20111313333031 its reverse (13033331311102), we get a palindrome (33144644644133).

The spelling of 20111313333031 in words is "twenty trillion, one hundred eleven billion, three hundred thirteen million, three hundred thirty-three thousand, thirty-one".