131212011341223 has 24 divisors (see below), whose sum is σ = 196548637737088. Its totient is φ = 87474405286584.

The previous prime is 131212011341197. The next prime is 131212011341237. The reversal of 131212011341223 is 322143110212131.

131212011341223 is a `hidden beast` number, since 1 + 3 + 1 + 21 + 201 + 1 + 3 + 412 + 23 = 666.

It is not a de Polignac number, because 131212011341223 - 2¹⁷ = 131212011210151 is a prime.

It is a super-3 number, since 3×131212011341223³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212011341273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107285640 + ... + 108501762.

Almost surely, 2^{131212011341223} is an apocalyptic number.

131212011341223 is a deficient number, since it is larger than the sum of its proper divisors (65336626395865).

131212011341223 is an equidigital number, since it uses as much as digits as its factorization.

131212011341223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660145 (or 1660133 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 131212011341223 its reverse (322143110212131), we get a palindrome (453355121553354).

The spelling of 131212011341223 in words is "one hundred thirty-one trillion, two hundred twelve billion, eleven million, three hundred forty-one thousand, two hundred twenty-three".