421113322044520 has 96 divisors (see below), whose sum is σ = 1103887569162600. Its totient is φ = 144160604754432.

The previous prime is 421113322044491. The next prime is 421113322044557. The reversal of 421113322044520 is 25440223311124.

It can be written as a sum of positive squares in 4 ways, for example, as 148405948111204 + 272707373933316 = 12182198^2 + 16513854^2 .

It is a super-2 number, since 2×421113322044520² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163232935 + ... + 165792694.

Almost surely, 2^{421113322044520} is an apocalyptic number.

421113322044520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421113322044520 is an abundant number, since it is smaller than the sum of its proper divisors (682774247118080).

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

421113322044520 is a wasteful number, since it uses less digits than its factorization.

421113322044520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329026307 (or 329026296 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 421113322044520 its reverse (25440223311124), we get a palindrome (446553545355644).

The spelling of 421113322044520 in words is "four hundred twenty-one trillion, one hundred thirteen billion, three hundred twenty-two million, forty-four thousand, five hundred twenty".