131123232199 has 4 divisors (see below), whose sum is σ = 134172609736. Its totient is φ = 128073854664.

The previous prime is 131123232187. The next prime is 131123232221. The reversal of 131123232199 is 991232321131.

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 131123232199 - 2¹⁷ = 131123101127 is a prime.

It is a super-4 number, since 4×131123232199⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123232299) 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 3 ways as a sum of consecutive naturals, for example, 1524688704 + ... + 1524688789.

It is an arithmetic number, because the mean of its divisors is an integer number (33543152434).

Almost surely, 2^131123232199 is an apocalyptic number.

131123232199 is a deficient number, since it is larger than the sum of its proper divisors (3049377537).

131123232199 is an equidigital number, since it uses as much as digits as its factorization.

131123232199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049377536.

The product of its digits is 17496, while the sum is 37.

It can be divided in two parts, 1311232 and 32199, that added together give a palindrome (1343431).

The spelling of 131123232199 in words is "one hundred thirty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred ninety-nine".