131523213523111 has 16 divisors (see below), whose sum is σ = 133656029305344. Its totient is φ = 129407565724704.

The previous prime is 131523213523099. The next prime is 131523213523277. The reversal of 131523213523111 is 111325312325131.

It is a cyclic number.

It is not a de Polignac number, because 131523213523111 - 2⁹ = 131523213522599 is a prime.

It is a super-2 number, since 2×131523213523111² (a number of 29 digits) contains 22 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 (131523213553111) 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 15 ways as a sum of consecutive naturals, for example, 36158385 + ... + 39629221.

It is an arithmetic number, because the mean of its divisors is an integer number (8353501831584).

Almost surely, 2^{131523213523111} is an apocalyptic number.

131523213523111 is a deficient number, since it is larger than the sum of its proper divisors (2132815782233).

131523213523111 is a wasteful number, since it uses less digits than its factorization.

131523213523111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473310.

The product of its digits is 16200, while the sum is 34.

Adding to 131523213523111 its reverse (111325312325131), we get a palindrome (242848525848242).

The spelling of 131523213523111 in words is "one hundred thirty-one trillion, five hundred twenty-three billion, two hundred thirteen million, five hundred twenty-three thousand, one hundred eleven".