1305350121025 has 12 divisors (see below), whose sum is σ = 1618728751872. Its totient is φ = 1044219063440.

The previous prime is 1305350120999. The next prime is 1305350121043. The reversal of 1305350121025 is 5201210535031.

It is a de Polignac number, because none of the positive numbers 2^k-1305350121025 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305350120984 and 1305350121002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1087057 + ... + 1947406.

It is an arithmetic number, because the mean of its divisors is an integer number (134894062656).

Almost surely, 2^{1305350121025} is an apocalyptic number.

It is an amenable number.

1305350121025 is a deficient number, since it is larger than the sum of its proper divisors (313378630847).

1305350121025 is a wasteful number, since it uses less digits than its factorization.

1305350121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051680 (or 3051675 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 1305350121025 its reverse (5201210535031), we get a palindrome (6506560656056).

The spelling of 1305350121025 in words is "one trillion, three hundred five billion, three hundred fifty million, one hundred twenty-one thousand, twenty-five".