123345330404544 has 168 divisors, whose sum is σ = 378462573528000. Its totient is φ = 38290967668224.

The previous prime is 123345330404407. The next prime is 123345330404557. The reversal of 123345330404544 is 445404033543321.

123345330404544 is a `hidden beast` number, since 1 + 2 + 3 + 34 + 5 + 3 + 30 + 40 + 4 + 544 = 666.

It is a super-2 number, since 2×123345330404544² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123345330404544.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94867774 + ... + 96159165.

Almost surely, 2^{123345330404544} is an apocalyptic number.

It is an amenable number.

123345330404544 is an abundant number, since it is smaller than the sum of its proper divisors (255117243123456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123345330404544 is a wasteful number, since it uses less digits than its factorization.

123345330404544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191027035 (or 191027022 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 45.

Adding to 123345330404544 its reverse (445404033543321), we get a palindrome (568749363947865).

The spelling of 123345330404544 in words is "one hundred twenty-three trillion, three hundred forty-five billion, three hundred thirty million, four hundred four thousand, five hundred forty-four".