20011302112131 has 24 divisors (see below), whose sum is σ = 31550373092160. Its totient is φ = 12121364890800.

The previous prime is 20011302112121. The next prime is 20011302112159. The reversal of 20011302112131 is 13121120311002.

20011302112131 is a `hidden beast` number, since 200 + 11 + 30 + 211 + 213 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-20011302112131 is a prime.

It is a super-2 number, since 2×20011302112131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20011302112121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55628101 + ... + 55986678.

It is an arithmetic number, because the mean of its divisors is an integer number (1314598878840).

Almost surely, 2^{20011302112131} is an apocalyptic number.

20011302112131 is a deficient number, since it is larger than the sum of its proper divisors (11539070980029).

20011302112131 is a wasteful number, since it uses less digits than its factorization.

20011302112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111616607 (or 111616604 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20011302112131 its reverse (13121120311002), we get a palindrome (33132422423133).

The spelling of 20011302112131 in words is "twenty trillion, eleven billion, three hundred two million, one hundred twelve thousand, one hundred thirty-one".