1283775121983 has 16 divisors (see below), whose sum is σ = 1739808082656. Its totient is φ = 841796883840.

The previous prime is 1283775121963. The next prime is 1283775121991. The reversal of 1283775121983 is 3891215773821.

It is not a de Polignac number, because 1283775121983 - 2¹⁰ = 1283775120959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283775121903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9052741 + ... + 9193457.

It is an arithmetic number, because the mean of its divisors is an integer number (108738005166).

Almost surely, 2^{1283775121983} is an apocalyptic number.

1283775121983 is a deficient number, since it is larger than the sum of its proper divisors (456032960673).

1283775121983 is a wasteful number, since it uses less digits than its factorization.

1283775121983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190634.

The product of its digits is 5080320, while the sum is 57.

The spelling of 1283775121983 in words is "one trillion, two hundred eighty-three billion, seven hundred seventy-five million, one hundred twenty-one thousand, nine hundred eighty-three".