2130131131123 has 4 divisors (see below), whose sum is σ = 2139043813920. Its totient is φ = 2121218448328.

The previous prime is 2130131131111. The next prime is 2130131131147. The reversal of 2130131131123 is 3211311310312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130131131123 is a prime.

It is a super-2 number, since 2×2130131131123² (a number of 25 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 = 2130131131094 and 2130131131103.

It is not an unprimeable number, because it can be changed into a prime (2130131131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4456341040 + ... + 4456341517.

It is an arithmetic number, because the mean of its divisors is an integer number (534760953480).

Almost surely, 2^{2130131131123} is an apocalyptic number.

2130131131123 is a deficient number, since it is larger than the sum of its proper divisors (8912682797).

2130131131123 is an equidigital number, since it uses as much as digits as its factorization.

2130131131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8912682796.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 2130131131123 its reverse (3211311310312), we get a palindrome (5341442441435).

The spelling of 2130131131123 in words is "two trillion, one hundred thirty billion, one hundred thirty-one million, one hundred thirty-one thousand, one hundred twenty-three".