403321020342 has 16 divisors (see below), whose sum is σ = 806648272320. Its totient is φ = 134439301512.

The previous prime is 403321020301. The next prime is 403321020367. The reversal of 403321020342 is 243020123304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336509 + ... + 1610247.

It is an arithmetic number, because the mean of its divisors is an integer number (50415517020).

Almost surely, 2^403321020342 is an apocalyptic number.

403321020342 is an abundant number, since it is smaller than the sum of its proper divisors (403327251978).

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

403321020342 is a wasteful number, since it uses less digits than its factorization.

403321020342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519307.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 403321020342 its reverse (243020123304), we get a palindrome (646341143646).

The spelling of 403321020342 in words is "four hundred three billion, three hundred twenty-one million, twenty thousand, three hundred forty-two".