1280232570911 has 4 divisors (see below), whose sum is σ = 1463122938192. Its totient is φ = 1097342203632.

The previous prime is 1280232570889. The next prime is 1280232570923. The reversal of 1280232570911 is 1190752320821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1280232570911 - 2¹⁸ = 1280232308767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280232579911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91445183630 + ... + 91445183643.

It is an arithmetic number, because the mean of its divisors is an integer number (365780734548).

Almost surely, 2^{1280232570911} is an apocalyptic number.

1280232570911 is a deficient number, since it is larger than the sum of its proper divisors (182890367281).

1280232570911 is an equidigital number, since it uses as much as digits as its factorization.

1280232570911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182890367280.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 1280232570911 in words is "one trillion, two hundred eighty billion, two hundred thirty-two million, five hundred seventy thousand, nine hundred eleven".