123403201434 has 20 divisors (see below), whose sum is σ = 276514581354. Its totient is φ = 41134400424.

The previous prime is 123403201417. The next prime is 123403201459. The reversal of 123403201434 is 434102304321.

123403201434 is a `hidden beast` number, since 1 + 23 + 4 + 0 + 3 + 201 + 434 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123093617409 + 309584025 = 350847^2 + 17595^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 123403201398 and 123403201407.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 380873917 + ... + 380874240.

Almost surely, 2^123403201434 is an apocalyptic number.

123403201434 is an abundant number, since it is smaller than the sum of its proper divisors (153111379920).

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

123403201434 is an equidigital number, since it uses as much as digits as its factorization.

123403201434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761748171 (or 761748162 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123403201434 its reverse (434102304321), we get a palindrome (557505505755).

The spelling of 123403201434 in words is "one hundred twenty-three billion, four hundred three million, two hundred one thousand, four hundred thirty-four".