983123321389 has 4 divisors (see below), whose sum is σ = 1072498168800. Its totient is φ = 893748473980.

The previous prime is 983123321351. The next prime is 983123321413.

983123321389 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 983123321389 - 2¹³ = 983123313197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983123321309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44687423689 + ... + 44687423710.

It is an arithmetic number, because the mean of its divisors is an integer number (268124542200).

Almost surely, 2^983123321389 is an apocalyptic number.

It is an amenable number.

983123321389 is a deficient number, since it is larger than the sum of its proper divisors (89374847411).

983123321389 is a wasteful number, since it uses less digits than its factorization.

983123321389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89374847410.

The product of its digits is 1679616, while the sum is 52.

The spelling of 983123321389 in words is "nine hundred eighty-three billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred eighty-nine".