1213031425000 has 96 divisors (see below), whose sum is σ = 2844816357600. Its totient is φ = 484878760000.

The previous prime is 1213031424991. The next prime is 1213031425031. The reversal of 1213031425000 is 5241303121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38059071 + ... + 38090929.

It is an arithmetic number, because the mean of its divisors is an integer number (29633503725).

Almost surely, 2^{1213031425000} is an apocalyptic number.

1213031425000 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 1213031425000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422408178800).

1213031425000 is an abundant number, since it is smaller than the sum of its proper divisors (1631784932600).

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

1213031425000 is an equidigital number, since it uses as much as digits as its factorization.

1213031425000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33413 (or 33389 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 1213031425000 its reverse (5241303121), we get a palindrome (1218272728121).

The spelling of 1213031425000 in words is "one trillion, two hundred thirteen billion, thirty-one million, four hundred twenty-five thousand".