20116271131 has 4 divisors (see below), whose sum is σ = 21945023064. Its totient is φ = 18287519200.

The previous prime is 20116271129. The next prime is 20116271159. The reversal of 20116271131 is 13117261102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20116271131 - 2¹ = 20116271129 is a prime.

It is a super-2 number, since 2×20116271131² (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 = 20116271096 and 20116271105.

It is not an unprimeable number, because it can be changed into a prime (20116271171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914375950 + ... + 914375971.

It is an arithmetic number, because the mean of its divisors is an integer number (5486255766).

Almost surely, 2^20116271131 is an apocalyptic number.

20116271131 is a deficient number, since it is larger than the sum of its proper divisors (1828751933).

20116271131 is a wasteful number, since it uses less digits than its factorization.

20116271131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828751932.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 20116271131 in words is "twenty billion, one hundred sixteen million, two hundred seventy-one thousand, one hundred thirty-one".