131344534223 has 4 divisors (see below), whose sum is σ = 150108039120. Its totient is φ = 112581029328.

The previous prime is 131344534163. The next prime is 131344534337. The reversal of 131344534223 is 322435443131.

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 131344534223 - 2⁶ = 131344534159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344534423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9381752438 + ... + 9381752451.

It is an arithmetic number, because the mean of its divisors is an integer number (37527009780).

Almost surely, 2^131344534223 is an apocalyptic number.

131344534223 is a deficient number, since it is larger than the sum of its proper divisors (18763504897).

131344534223 is an equidigital number, since it uses as much as digits as its factorization.

131344534223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18763504896.

The product of its digits is 103680, while the sum is 35.

Adding to 131344534223 its reverse (322435443131), we get a palindrome (453779977354).

The spelling of 131344534223 in words is "one hundred thirty-one billion, three hundred forty-four million, five hundred thirty-four thousand, two hundred twenty-three".