1208291116281 has 32 divisors (see below), whose sum is σ = 1662973106688. Its totient is φ = 779961692160.

The previous prime is 1208291116261. The next prime is 1208291116283. The reversal of 1208291116281 is 1826111928021.

It is a happy number.

It is not a de Polignac number, because 1208291116281 - 2¹⁰ = 1208291115257 is a prime.

It is a super-2 number, since 2×1208291116281² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1208291116283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8549665 + ... + 8689841.

It is an arithmetic number, because the mean of its divisors is an integer number (51967909584).

Almost surely, 2^{1208291116281} is an apocalyptic number.

It is an amenable number.

1208291116281 is a deficient number, since it is larger than the sum of its proper divisors (454681990407).

1208291116281 is a wasteful number, since it uses less digits than its factorization.

1208291116281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140881.

The product of its (nonzero) digits is 27648, while the sum is 42.

The spelling of 1208291116281 in words is "one trillion, two hundred eight billion, two hundred ninety-one million, one hundred sixteen thousand, two hundred eighty-one".