20112131132131 has 8 divisors (see below), whose sum is σ = 20591635300544. Its totient is φ = 19633162426920.

The previous prime is 20112131132083. The next prime is 20112131132167. The reversal of 20112131132131 is 13123113121102.

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

It is a cyclic number.

It is not a de Polignac number, because 20112131132131 - 2¹¹ = 20112131130083 is a prime.

It is a super-2 number, since 2×20112131132131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112131130131) 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, 133789785 + ... + 133940026.

It is an arithmetic number, because the mean of its divisors is an integer number (2573954412568).

Almost surely, 2^{20112131132131} is an apocalyptic number.

20112131132131 is a deficient number, since it is larger than the sum of its proper divisors (479504168413).

20112131132131 is a wasteful number, since it uses less digits than its factorization.

20112131132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267731601.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 20112131132131 its reverse (13123113121102), we get a palindrome (33235244253233).

The spelling of 20112131132131 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred thirty-one".