1279309234281 has 16 divisors (see below), whose sum is σ = 1837063462080. Its totient is φ = 787221529920.

The previous prime is 1279309234271. The next prime is 1279309234367. The reversal of 1279309234281 is 1824329039721.

It is not a de Polignac number, because 1279309234281 - 2¹⁷ = 1279309103209 is a prime.

It is a super-2 number, since 2×1279309234281² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1279309234261) 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 15 ways as a sum of consecutive naturals, for example, 265035 + ... + 1621376.

It is an arithmetic number, because the mean of its divisors is an integer number (114816466380).

Almost surely, 2^{1279309234281} is an apocalyptic number.

It is an amenable number.

1279309234281 is a deficient number, since it is larger than the sum of its proper divisors (557754227799).

1279309234281 is a wasteful number, since it uses less digits than its factorization.

1279309234281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903816.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 1279309234281 in words is "one trillion, two hundred seventy-nine billion, three hundred nine million, two hundred thirty-four thousand, two hundred eighty-one".