1231214325 has 36 divisors (see below), whose sum is σ = 2237502624. Its totient is φ = 596948000.

The previous prime is 1231214317. The next prime is 1231214339. The reversal of 1231214325 is 5234121321.

It is not a de Polignac number, because 1231214325 - 2³ = 1231214317 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231214295 and 1231214304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 58761 + ... + 76910.

Almost surely, 2^1231214325 is an apocalyptic number.

1231214325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1231214325 is a deficient number, since it is larger than the sum of its proper divisors (1006288299).

1231214325 is a wasteful number, since it uses less digits than its factorization.

1231214325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135706 (or 135690 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1231214325 is about 35088.6637676615. The cubic root of 1231214325 is about 1071.7937493625.

Adding to 1231214325 its reverse (5234121321), we get a palindrome (6465335646).

The spelling of 1231214325 in words is "one billion, two hundred thirty-one million, two hundred fourteen thousand, three hundred twenty-five".