131302203121123 has 4 divisors (see below), whose sum is σ = 131302508840568. Its totient is φ = 131301897401680.

The previous prime is 131302203121109. The next prime is 131302203121151. The reversal of 131302203121123 is 321121302203131.

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 131302203121123 - 2¹⁷ = 131302202990051 is a prime.

It is a super-2 number, since 2×131302203121123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131302203131123) 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, 152214586 + ... + 153074767.

It is an arithmetic number, because the mean of its divisors is an integer number (32825627210142).

Almost surely, 2^{131302203121123} is an apocalyptic number.

131302203121123 is a deficient number, since it is larger than the sum of its proper divisors (305719445).

131302203121123 is an equidigital number, since it uses as much as digits as its factorization.

131302203121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305719444.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 131302203121123 its reverse (321121302203131), we get a palindrome (452423505324254).

The spelling of 131302203121123 in words is "one hundred thirty-one trillion, three hundred two billion, two hundred three million, one hundred twenty-one thousand, one hundred twenty-three".