981523119123 has 6 divisors (see below), whose sum is σ = 1417755616524. Its totient is φ = 654348746076.

The previous prime is 981523119097. The next prime is 981523119133. The reversal of 981523119123 is 321911325189.

981523119123 is a `hidden beast` number, since 9 + 8 + 1 + 523 + 11 + 91 + 23 = 666.

It is not a de Polignac number, because 981523119123 - 2²⁰ = 981522070547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981523119133) 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 5 ways as a sum of consecutive naturals, for example, 54529062165 + ... + 54529062182.

It is an arithmetic number, because the mean of its divisors is an integer number (236292602754).

Almost surely, 2^981523119123 is an apocalyptic number.

981523119123 is a deficient number, since it is larger than the sum of its proper divisors (436232497401).

981523119123 is a wasteful number, since it uses less digits than its factorization.

981523119123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109058124353 (or 109058124350 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The spelling of 981523119123 in words is "nine hundred eighty-one billion, five hundred twenty-three million, one hundred nineteen thousand, one hundred twenty-three".