123318481 has 16 divisors (see below), whose sum is σ = 146095488. Its totient is φ = 103469520.

The previous prime is 123318467. The next prime is 123318487. The reversal of 123318481 is 184813321.

It is not a de Polignac number, because 123318481 - 2⁵ = 123318449 is a prime.

It is a super-2 number, since 2×123318481² = 30414895512294722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123318487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13740 + ... + 20866.

It is an arithmetic number, because the mean of its divisors is an integer number (9130968).

Almost surely, 2^123318481 is an apocalyptic number.

123318481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123318481 is a deficient number, since it is larger than the sum of its proper divisors (22777007).

123318481 is an equidigital number, since it uses as much as digits as its factorization.

123318481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173 (or 7151 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 123318481 is about 11104.8854564106. The cubic root of 123318481 is about 497.7478454980.

The spelling of 123318481 in words is "one hundred twenty-three million, three hundred eighteen thousand, four hundred eighty-one".