1283005866121 has 8 divisors (see below), whose sum is σ = 1466709362240. Its totient is φ = 1099406605968.

The previous prime is 1283005866091. The next prime is 1283005866137. The reversal of 1283005866121 is 1216685003821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283005866121 is a prime.

It is a super-2 number, since 2×1283005866121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283005860121) 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 7 ways as a sum of consecutive naturals, for example, 26032611 + ... + 26081848.

It is an arithmetic number, because the mean of its divisors is an integer number (183338670280).

Almost surely, 2^{1283005866121} is an apocalyptic number.

It is an amenable number.

1283005866121 is a deficient number, since it is larger than the sum of its proper divisors (183703496119).

1283005866121 is an equidigital number, since it uses as much as digits as its factorization.

1283005866121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52117983.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 1283005866121 in words is "one trillion, two hundred eighty-three billion, five million, eight hundred sixty-six thousand, one hundred twenty-one".