1305245342352 has 120 divisors (see below), whose sum is σ = 3923186923776. Its totient is φ = 372851990784.

The previous prime is 1305245342341. The next prime is 1305245342381. The reversal of 1305245342352 is 2532435425031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305245342352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12169953 + ... + 12276735.

Almost surely, 2^{1305245342352} is an apocalyptic number.

1305245342352 is a gapful number since it is divisible by the number (12) 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 1305245342352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961593461888).

1305245342352 is an abundant number, since it is smaller than the sum of its proper divisors (2617941581424).

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

1305245342352 is a wasteful number, since it uses less digits than its factorization.

1305245342352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112005 (or 111992 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

The spelling of 1305245342352 in words is "one trillion, three hundred five billion, two hundred forty-five million, three hundred forty-two thousand, three hundred fifty-two".