12251131325 has 6 divisors (see below), whose sum is σ = 15191402874. Its totient is φ = 9800905040.

The previous prime is 12251131307. The next prime is 12251131357. The reversal of 12251131325 is 52313115221.

It can be written as a sum of positive squares in 3 ways, for example, as 761649604 + 11489481721 = 27598^2 + 107189^2 .

It is not a de Polignac number, because 12251131325 - 2⁶ = 12251131261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12251131294 and 12251131303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245022602 + ... + 245022651.

It is an arithmetic number, because the mean of its divisors is an integer number (2531900479).

Almost surely, 2^12251131325 is an apocalyptic number.

It is an amenable number.

12251131325 is a deficient number, since it is larger than the sum of its proper divisors (2940271549).

12251131325 is an equidigital number, since it uses as much as digits as its factorization.

12251131325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490045263 (or 490045258 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

Adding to 12251131325 its reverse (52313115221), we get a palindrome (64564246546).

The spelling of 12251131325 in words is "twelve billion, two hundred fifty-one million, one hundred thirty-one thousand, three hundred twenty-five".