131343342233 has 4 divisors (see below), whose sum is σ = 134397838608. Its totient is φ = 128288845860.

The previous prime is 131343342227. The next prime is 131343342239. The reversal of 131343342233 is 332243343131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332243343131 = 7 ⋅47463334733.

It is an interprime number because it is at equal distance from previous prime (131343342227) and next prime (131343342239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131343342233 is a prime.

It is a super-2 number, since 2×131343342233² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131343342233.

It is not an unprimeable number, because it can be changed into a prime (131343342239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1527248123 + ... + 1527248208.

It is an arithmetic number, because the mean of its divisors is an integer number (33599459652).

Almost surely, 2^131343342233 is an apocalyptic number.

It is an amenable number.

131343342233 is a deficient number, since it is larger than the sum of its proper divisors (3054496375).

131343342233 is an equidigital number, since it uses as much as digits as its factorization.

131343342233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054496374.

The product of its digits is 46656, while the sum is 32.

Adding to 131343342233 its reverse (332243343131), we get a palindrome (463586685364).

The spelling of 131343342233 in words is "one hundred thirty-one billion, three hundred forty-three million, three hundred forty-two thousand, two hundred thirty-three".