131505015441223 has 4 divisors (see below), whose sum is σ = 131510470520520. Its totient is φ = 131499560361928.

The previous prime is 131505015441179. The next prime is 131505015441257. The reversal of 131505015441223 is 322144510505131.

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 131505015441223 - 2²¹ = 131505013344071 is a prime.

It is a super-3 number, since 3×131505015441223³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131505015141223) 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, 2727503488 + ... + 2727551701.

It is an arithmetic number, because the mean of its divisors is an integer number (32877617630130).

Almost surely, 2^{131505015441223} is an apocalyptic number.

131505015441223 is a deficient number, since it is larger than the sum of its proper divisors (5455079297).

131505015441223 is an equidigital number, since it uses as much as digits as its factorization.

131505015441223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455079296.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 131505015441223 its reverse (322144510505131), we get a palindrome (453649525946354).

The spelling of 131505015441223 in words is "one hundred thirty-one trillion, five hundred five billion, fifteen million, four hundred forty-one thousand, two hundred twenty-three".