1293280809311 has 4 divisors (see below), whose sum is σ = 1294185835800. Its totient is φ = 1292375782824.

The previous prime is 1293280809307. The next prime is 1293280809341. The reversal of 1293280809311 is 1139080823921.

It is a happy number.

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 1293280809311 - 2² = 1293280809307 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 (1293280809341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452511101 + ... + 452513958.

It is an arithmetic number, because the mean of its divisors is an integer number (323546458950).

Almost surely, 2^{1293280809311} is an apocalyptic number.

1293280809311 is a deficient number, since it is larger than the sum of its proper divisors (905026489).

1293280809311 is an equidigital number, since it uses as much as digits as its factorization.

1293280809311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905026488.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 1293280809311 in words is "one trillion, two hundred ninety-three billion, two hundred eighty million, eight hundred nine thousand, three hundred eleven".