421113143 has 8 divisors (see below), whose sum is σ = 468064656. Its totient is φ = 375606400.

The previous prime is 421113139. The next prime is 421113191. The reversal of 421113143 is 341311124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421113143 - 2² = 421113139 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 (421113193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360578 + ... + 361743.

It is an arithmetic number, because the mean of its divisors is an integer number (58508082).

Almost surely, 2^421113143 is an apocalyptic number.

421113143 is a deficient number, since it is larger than the sum of its proper divisors (46951513).

421113143 is a wasteful number, since it uses less digits than its factorization.

421113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722385.

The product of its digits is 288, while the sum is 20.

The square root of 421113143 is about 20521.0414696720. The cubic root of 421113143 is about 749.5482571443.

Adding to 421113143 its reverse (341311124), we get a palindrome (762424267).

It can be divided in two parts, 42111 and 3143, that added together give a palindrome (45254).

The spelling of 421113143 in words is "four hundred twenty-one million, one hundred thirteen thousand, one hundred forty-three".