1286496311121 has 48 divisors (see below), whose sum is σ = 2214489513600. Its totient is φ = 723088866240.

The previous prime is 1286496311071. The next prime is 1286496311167. The reversal of 1286496311121 is 1211136946821.

1286496311121 is a `hidden beast` number, since 1 + 2 + 8 + 6 + 4 + 9 + 631 + 1 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 1286496311121 - 2¹⁹ = 1286495786833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1286496311521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211386 + ... + 1617923.

It is an arithmetic number, because the mean of its divisors is an integer number (46135198200).

Almost surely, 2^{1286496311121} is an apocalyptic number.

It is an amenable number.

1286496311121 is a deficient number, since it is larger than the sum of its proper divisors (927993202479).

1286496311121 is an equidigital number, since it uses as much as digits as its factorization.

1286496311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829447 (or 1829380 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The spelling of 1286496311121 in words is "one trillion, two hundred eighty-six billion, four hundred ninety-six million, three hundred eleven thousand, one hundred twenty-one".