1252312321230 has 24 divisors (see below), whose sum is σ = 3256012035432. Its totient is φ = 333949952304.

The previous prime is 1252312321229. The next prime is 1252312321277. The reversal of 1252312321230 is 321232132521.

1252312321230 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 312 + 321 + 23 + 0 = 666.

It is a super-2 number, since 2×1252312321230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252312321194 and 1252312321203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6957290584 + ... + 6957290763.

It is an arithmetic number, because the mean of its divisors is an integer number (135667168143).

Almost surely, 2^{1252312321230} is an apocalyptic number.

1252312321230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252312321230 is an abundant number, since it is smaller than the sum of its proper divisors (2003699714202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252312321230 is a wasteful number, since it uses less digits than its factorization.

1252312321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13914581360 (or 13914581357 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1252312321230 its reverse (321232132521), we get a palindrome (1573544453751).

The spelling of 1252312321230 in words is "one trillion, two hundred fifty-two billion, three hundred twelve million, three hundred twenty-one thousand, two hundred thirty".