1252321030000 has 100 divisors (see below), whose sum is σ = 3047708958448. Its totient is φ = 498332160000.

The previous prime is 1252321029961. The next prime is 1252321030027. The reversal of 1252321030000 is 301232521.

It is a tau number, because it is divible by the number of its divisors (100).

It is a self number, because there is not a number n which added to its sum of digits gives 1252321030000.

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 19 ways as a sum of consecutive naturals, for example, 1605565 + ... + 2254435.

Almost surely, 2^{1252321030000} is an apocalyptic number.

1252321030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252321030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1523854479224).

1252321030000 is an abundant number, since it is smaller than the sum of its proper divisors (1795387928448).

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

1252321030000 is an equidigital number, since it uses as much as digits as its factorization.

1252321030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649092 (or 649071 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 1252321030000 its reverse (301232521), we get a palindrome (1252622262521).

The spelling of 1252321030000 in words is "one trillion, two hundred fifty-two billion, three hundred twenty-one million, thirty thousand".