123034404420 has 72 divisors (see below), whose sum is σ = 376899508440. Its totient is φ = 32484326400.

The previous prime is 123034404397. The next prime is 123034404431. The reversal of 123034404420 is 24404430321.

It is a happy number.

123034404420 is a `hidden beast` number, since 1 + 230 + 3 + 4 + 4 + 0 + 4 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 84178898496 + 38855505924 = 290136^2 + 197118^2 .

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, 3365605 + ... + 3401964.

It is an arithmetic number, because the mean of its divisors is an integer number (5234715395).

Almost surely, 2^123034404420 is an apocalyptic number.

123034404420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123034404420 is an abundant number, since it is smaller than the sum of its proper divisors (253865104020).

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

123034404420 is a wasteful number, since it uses less digits than its factorization.

123034404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767685 (or 6767680 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 123034404420 its reverse (24404430321), we get a palindrome (147438834741).

The spelling of 123034404420 in words is "one hundred twenty-three billion, thirty-four million, four hundred four thousand, four hundred twenty".