421331435425053 has 24 divisors (see below), whose sum is σ = 636831399618648. Its totient is φ = 268139536659072.

The previous prime is 421331435425013. The next prime is 421331435425063. The reversal of 421331435425053 is 350524534133124.

421331435425053 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 3 + 1 + 4 + 3 + 542 + 50 + 53 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 62527638983364 + 358803796441689 = 7907442^2 + 18942117^2 .

It is not a de Polignac number, because 421331435425053 - 2²¹ = 421331433327901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421331435425013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11936393350 + ... + 11936428647.

It is an arithmetic number, because the mean of its divisors is an integer number (26534641650777).

Almost surely, 2^{421331435425053} is an apocalyptic number.

It is an amenable number.

421331435425053 is a deficient number, since it is larger than the sum of its proper divisors (215499964193595).

421331435425053 is a wasteful number, since it uses less digits than its factorization.

421331435425053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23872822093 (or 23872822090 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

Adding to 421331435425053 its reverse (350524534133124), we get a palindrome (771855969558177).

The spelling of 421331435425053 in words is "four hundred twenty-one trillion, three hundred thirty-one billion, four hundred thirty-five million, four hundred twenty-five thousand, fifty-three".