354234520403 has 12 divisors (see below), whose sum is σ = 369583843824. Its totient is φ = 339479276400.

The previous prime is 354234520327. The next prime is 354234520417. The reversal of 354234520403 is 304025432453.

It is a happy number.

It is not a de Polignac number, because 354234520403 - 2²⁸ = 353966084947 is a prime.

It is a super-3 number, since 3×354234520403³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354234520303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1690388 + ... + 1888353.

It is an arithmetic number, because the mean of its divisors is an integer number (30798653652).

Almost surely, 2^354234520403 is an apocalyptic number.

354234520403 is a deficient number, since it is larger than the sum of its proper divisors (15349323421).

354234520403 is a wasteful number, since it uses less digits than its factorization.

354234520403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578906 (or 3578875 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 354234520403 its reverse (304025432453), we get a palindrome (658259952856).

The spelling of 354234520403 in words is "three hundred fifty-four billion, two hundred thirty-four million, five hundred twenty thousand, four hundred three".