131324420225 has 24 divisors (see below), whose sum is σ = 163629854400. Its totient is φ = 104551830720.

The previous prime is 131324420219. The next prime is 131324420233. The reversal of 131324420225 is 522024423131.

It is not a de Polignac number, because 131324420225 - 2⁴ = 131324420209 is a prime.

It is a super-2 number, since 2×131324420225² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21181676 + ... + 21187874.

It is an arithmetic number, because the mean of its divisors is an integer number (6817910600).

Almost surely, 2^131324420225 is an apocalyptic number.

It is an amenable number.

131324420225 is a deficient number, since it is larger than the sum of its proper divisors (32305434175).

131324420225 is a wasteful number, since it uses less digits than its factorization.

131324420225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10169 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 131324420225 its reverse (522024423131), we get a palindrome (653348843356).

The spelling of 131324420225 in words is "one hundred thirty-one billion, three hundred twenty-four million, four hundred twenty thousand, two hundred twenty-five".