123031983 has 4 divisors (see below), whose sum is σ = 164042648. Its totient is φ = 82021320.

The previous prime is 123031981. The next prime is 123032017. The reversal of 123031983 is 389130321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123031983 - 2¹ = 123031981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123031983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031981) 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, 20505328 + ... + 20505333.

It is an arithmetic number, because the mean of its divisors is an integer number (41010662).

Almost surely, 2^123031983 is an apocalyptic number.

123031983 is a deficient number, since it is larger than the sum of its proper divisors (41010665).

123031983 is an equidigital number, since it uses as much as digits as its factorization.

123031983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41010664.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 123031983 is about 11091.9783176853. The cubic root of 123031983 is about 497.3620846131.

The spelling of 123031983 in words is "one hundred twenty-three million, thirty-one thousand, nine hundred eighty-three".