131122340352225 has 18 divisors (see below), whose sum is σ = 234854680720166. Its totient is φ = 69931914854400.

The previous prime is 131122340352217. The next prime is 131122340352271. The reversal of 131122340352225 is 522253043221131.

131122340352225 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 23 + 403 + 5 + 2 + 225 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 13357044063441 + 117765296288784 = 3654729^2 + 10851972^2 .

It is not a de Polignac number, because 131122340352225 - 2³ = 131122340352217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131122340352225.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 291382978336 + ... + 291382978785.

Almost surely, 2^{131122340352225} is an apocalyptic number.

131122340352225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131122340352225 is a deficient number, since it is larger than the sum of its proper divisors (103732340367941).

131122340352225 is a wasteful number, since it uses less digits than its factorization.

131122340352225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582765957137 (or 582765957129 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 131122340352225 its reverse (522253043221131), we get a palindrome (653375383573356).

The spelling of 131122340352225 in words is "one hundred thirty-one trillion, one hundred twenty-two billion, three hundred forty million, three hundred fifty-two thousand, two hundred twenty-five".