421125012143 has 16 divisors (see below), whose sum is σ = 461636848512. Its totient is φ = 380987100000.

The previous prime is 421125012067. The next prime is 421125012157. The reversal of 421125012143 is 341210521124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 421125012143 - 2²⁸ = 420856576687 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 (421125017143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3168005 + ... + 3298257.

It is an arithmetic number, because the mean of its divisors is an integer number (28852303032).

Almost surely, 2^421125012143 is an apocalyptic number.

421125012143 is a deficient number, since it is larger than the sum of its proper divisors (40511836369).

421125012143 is a wasteful number, since it uses less digits than its factorization.

421125012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131686.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 421125012143 its reverse (341210521124), we get a palindrome (762335533267).

The spelling of 421125012143 in words is "four hundred twenty-one billion, one hundred twenty-five million, twelve thousand, one hundred forty-three".