1982331121 has 8 divisors (see below), whose sum is σ = 2125509120. Its totient is φ = 1842105408.

The previous prime is 1982331119. The next prime is 1982331167. The reversal of 1982331121 is 1211332891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982331121 - 2¹ = 1982331119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982331191) 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, 736681 + ... + 739366.

It is an arithmetic number, because the mean of its divisors is an integer number (265688640).

Almost surely, 2^1982331121 is an apocalyptic number.

It is an amenable number.

1982331121 is a deficient number, since it is larger than the sum of its proper divisors (143177999).

1982331121 is a wasteful number, since it uses less digits than its factorization.

1982331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476143.

The product of its digits is 2592, while the sum is 31.

The square root of 1982331121 is about 44523.3772416244. The cubic root of 1982331121 is about 1256.1998379152.

The spelling of 1982331121 in words is "one billion, nine hundred eighty-two million, three hundred thirty-one thousand, one hundred twenty-one".