1305243251041 has 8 divisors (see below), whose sum is σ = 1370348746560. Its totient is φ = 1240834071312.

The previous prime is 1305243251033. The next prime is 1305243251071. The reversal of 1305243251041 is 1401523425031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305243251041 - 2³ = 1305243251033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305243250994 and 1305243251012.

It is not an unprimeable number, because it can be changed into a prime (1305243251021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 174075106 + ... + 174082603.

It is an arithmetic number, because the mean of its divisors is an integer number (171293593320).

Almost surely, 2^{1305243251041} is an apocalyptic number.

It is an amenable number.

1305243251041 is a deficient number, since it is larger than the sum of its proper divisors (65105495519).

1305243251041 is a wasteful number, since it uses less digits than its factorization.

1305243251041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348157895.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1305243251041 its reverse (1401523425031), we get a palindrome (2706766676072).

The spelling of 1305243251041 in words is "one trillion, three hundred five billion, two hundred forty-three million, two hundred fifty-one thousand, forty-one".