1294729323223 has 16 divisors (see below), whose sum is σ = 1546317020160. Its totient is φ = 1060896455136.

The previous prime is 1294729323211. The next prime is 1294729323227. The reversal of 1294729323223 is 3223239274921.

It is not a de Polignac number, because 1294729323223 - 2³³ = 1286139388631 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 (1294729323227) 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 15 ways as a sum of consecutive naturals, for example, 45745708 + ... + 45774001.

It is an arithmetic number, because the mean of its divisors is an integer number (96644813760).

Almost surely, 2^{1294729323223} is an apocalyptic number.

1294729323223 is a deficient number, since it is larger than the sum of its proper divisors (251587696937).

1294729323223 is an equidigital number, since it uses as much as digits as its factorization.

1294729323223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91519806.

The product of its digits is 1959552, while the sum is 49.

The spelling of 1294729323223 in words is "one trillion, two hundred ninety-four billion, seven hundred twenty-nine million, three hundred twenty-three thousand, two hundred twenty-three".