123409884148 has 12 divisors (see below), whose sum is σ = 217948649380. Its totient is φ = 61138841472.

The previous prime is 123409884137. The next prime is 123409884149. The reversal of 123409884148 is 841488904321.

It can be written as a sum of positive squares in 2 ways, for example, as 112431454864 + 10978429284 = 335308^2 + 104778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123409884095 and 123409884104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123409884149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141524661 + ... + 141525532.

Almost surely, 2^123409884148 is an apocalyptic number.

It is an amenable number.

123409884148 is a deficient number, since it is larger than the sum of its proper divisors (94538765232).

123409884148 is a wasteful number, since it uses less digits than its factorization.

123409884148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283050306 (or 283050304 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 52.

The spelling of 123409884148 in words is "one hundred twenty-three billion, four hundred nine million, eight hundred eighty-four thousand, one hundred forty-eight".