424132012421 has 4 divisors (see below), whose sum is σ = 456757551852. Its totient is φ = 391506472992.

The previous prime is 424132012411. The next prime is 424132012427. The reversal of 424132012421 is 124210231424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19618204225 + 404513808196 = 140065^2 + 636014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424132012421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424132012427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16312769696 + ... + 16312769721.

It is an arithmetic number, because the mean of its divisors is an integer number (114189387963).

Almost surely, 2^424132012421 is an apocalyptic number.

It is an amenable number.

424132012421 is a deficient number, since it is larger than the sum of its proper divisors (32625539431).

424132012421 is a wasteful number, since it uses less digits than its factorization.

424132012421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32625539430.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 424132012421 its reverse (124210231424), we get a palindrome (548342243845).

The spelling of 424132012421 in words is "four hundred twenty-four billion, one hundred thirty-two million, twelve thousand, four hundred twenty-one".