421024530413 has 4 divisors (see below), whose sum is σ = 421194506460. Its totient is φ = 420854554368.

The previous prime is 421024530401. The next prime is 421024530427. The reversal of 421024530413 is 314035420124.

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 98648130889 + 322376399524 = 314083^2 + 567782^2 .

It is a cyclic number.

It is not a de Polignac number, because 421024530413 - 2⁴ = 421024530397 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 (421024532413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84984308 + ... + 84989261.

It is an arithmetic number, because the mean of its divisors is an integer number (105298626615).

Almost surely, 2^421024530413 is an apocalyptic number.

It is an amenable number.

421024530413 is a deficient number, since it is larger than the sum of its proper divisors (169976047).

421024530413 is a wasteful number, since it uses less digits than its factorization.

421024530413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169976046.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 421024530413 its reverse (314035420124), we get a palindrome (735059950537).

The spelling of 421024530413 in words is "four hundred twenty-one billion, twenty-four million, five hundred thirty thousand, four hundred thirteen".