403013423421 has 24 divisors (see below), whose sum is σ = 677844685440. Its totient is φ = 225948224736.

The previous prime is 403013423401. The next prime is 403013423437. The reversal of 403013423421 is 124324310304.

403013423421 is a `hidden beast` number, since 403 + 0 + 1 + 3 + 4 + 234 + 21 = 666.

It is not a de Polignac number, because 403013423421 - 2⁵ = 403013423389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403013423401) 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 23 ways as a sum of consecutive naturals, for example, 60346081 + ... + 60352758.

It is an arithmetic number, because the mean of its divisors is an integer number (28243528560).

Almost surely, 2^403013423421 is an apocalyptic number.

It is an amenable number.

403013423421 is a deficient number, since it is larger than the sum of its proper divisors (274831262019).

403013423421 is a wasteful number, since it uses less digits than its factorization.

403013423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120698905 (or 120698902 counting only the distinct ones).

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

Adding to 403013423421 its reverse (124324310304), we get a palindrome (527337733725).

The spelling of 403013423421 in words is "four hundred three billion, thirteen million, four hundred twenty-three thousand, four hundred twenty-one".