421503433134 has 16 divisors (see below), whose sum is σ = 963436418688. Its totient is φ = 120429552312.

The previous prime is 421503433121. The next prime is 421503433187. The reversal of 421503433134 is 431334305124.

It is a junction number, because it is equal to n+sod(n) for n = 421503433095 and 421503433104.

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, 5017897972 + ... + 5017898055.

It is an arithmetic number, because the mean of its divisors is an integer number (60214776168).

Almost surely, 2^421503433134 is an apocalyptic number.

421503433134 is an abundant number, since it is smaller than the sum of its proper divisors (541932985554).

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

421503433134 is a wasteful number, since it uses less digits than its factorization.

421503433134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10035796039.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 421503433134 its reverse (431334305124), we get a palindrome (852837738258).

The spelling of 421503433134 in words is "four hundred twenty-one billion, five hundred three million, four hundred thirty-three thousand, one hundred thirty-four".