123331994 has 16 divisors (see below), whose sum is σ = 187991232. Its totient is φ = 60676128.

The previous prime is 123331993. The next prime is 123332087. The reversal of 123331994 is 499133321.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (123331993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31742 + ... + 35414.

It is an arithmetic number, because the mean of its divisors is an integer number (11749452).

Almost surely, 2^123331994 is an apocalyptic number.

123331994 is a deficient number, since it is larger than the sum of its proper divisors (64659238).

123331994 is a wasteful number, since it uses less digits than its factorization.

123331994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941.

The product of its digits is 17496, while the sum is 35.

The square root of 123331994 is about 11105.4938656505. The cubic root of 123331994 is about 497.7660255819.

The spelling of 123331994 in words is "one hundred twenty-three million, three hundred thirty-one thousand, nine hundred ninety-four".