1241206305265 has 32 divisors (see below), whose sum is σ = 1504301992704. Its totient is φ = 983113148160.

The previous prime is 1241206305257. The next prime is 1241206305277. The reversal of 1241206305265 is 5625036021421.

It is not a de Polignac number, because 1241206305265 - 2³ = 1241206305257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444716020 + ... + 444718810.

It is an arithmetic number, because the mean of its divisors is an integer number (47009437272).

Almost surely, 2^{1241206305265} is an apocalyptic number.

It is an amenable number.

1241206305265 is a deficient number, since it is larger than the sum of its proper divisors (263095687439).

1241206305265 is a wasteful number, since it uses less digits than its factorization.

1241206305265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 1241206305265 in words is "one trillion, two hundred forty-one billion, two hundred six million, three hundred five thousand, two hundred sixty-five".