20113330131131 has 16 divisors (see below), whose sum is σ = 21384300200256. Its totient is φ = 18875416175616.

The previous prime is 20113330131073. The next prime is 20113330131133. The reversal of 20113330131131 is 13113103331102.

It is a cyclic number.

It is not a de Polignac number, because 20113330131131 - 2¹⁴ = 20113330114747 is a prime.

It is a super-2 number, since 2×20113330131131² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113330131097 and 20113330131106.

It is not an unprimeable number, because it can be changed into a prime (20113330131133) 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, 62829731 + ... + 63149043.

It is an arithmetic number, because the mean of its divisors is an integer number (1336518762516).

Almost surely, 2^{20113330131131} is an apocalyptic number.

20113330131131 is a deficient number, since it is larger than the sum of its proper divisors (1270970069125).

20113330131131 is a wasteful number, since it uses less digits than its factorization.

20113330131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371062.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 20113330131131 its reverse (13113103331102), we get a palindrome (33226433462233).

The spelling of 20113330131131 in words is "twenty trillion, one hundred thirteen billion, three hundred thirty million, one hundred thirty-one thousand, one hundred thirty-one".