421525340153343 has 56 divisors (see below), whose sum is σ = 665765631847280. Its totient is φ = 266024984987520.

The previous prime is 421525340153329. The next prime is 421525340153363. The reversal of 421525340153343 is 343351043525124.

421525340153343 is a `hidden beast` number, since 4 + 2 + 1 + 5 + 253 + 4 + 0 + 1 + 53 + 343 = 666.

It is not a de Polignac number, because 421525340153343 - 2⁴ = 421525340153327 is a prime.

It is a super-2 number, since 2×421525340153343² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421525340153363) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6778305 + ... + 29816037.

Almost surely, 2^{421525340153343} is an apocalyptic number.

421525340153343 is a deficient number, since it is larger than the sum of its proper divisors (244240291693937).

421525340153343 is a wasteful number, since it uses less digits than its factorization.

421525340153343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23039091 (or 23039076 counting only the distinct ones).

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

Adding to 421525340153343 its reverse (343351043525124), we get a palindrome (764876383678467).

The spelling of 421525340153343 in words is "four hundred twenty-one trillion, five hundred twenty-five billion, three hundred forty million, one hundred fifty-three thousand, three hundred forty-three".