421146020003 has 4 divisors (see below), whose sum is σ = 421768097520. Its totient is φ = 420523942488.

The previous prime is 421146019997. The next prime is 421146020021. The reversal of 421146020003 is 300020641124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421146020003 - 2³² = 416851052707 is a prime.

It is a super-2 number, since 2×421146020003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421146020023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311037743 + ... + 311039096.

It is an arithmetic number, because the mean of its divisors is an integer number (105442024380).

Almost surely, 2^421146020003 is an apocalyptic number.

421146020003 is a deficient number, since it is larger than the sum of its proper divisors (622077517).

421146020003 is an equidigital number, since it uses as much as digits as its factorization.

421146020003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622077516.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 421146020003 its reverse (300020641124), we get a palindrome (721166661127).

The spelling of 421146020003 in words is "four hundred twenty-one billion, one hundred forty-six million, twenty thousand, three".