423421210100 has 36 divisors (see below), whose sum is σ = 1050084602784. Its totient is φ = 145172986080.

The previous prime is 423421210033. The next prime is 423421210127. The reversal of 423421210100 is 1012124324.

It is a super-3 number, since 3×423421210100³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302443022 + ... + 302444421.

It is an arithmetic number, because the mean of its divisors is an integer number (29169016744).

Almost surely, 2^423421210100 is an apocalyptic number.

It is an amenable number.

423421210100 is an abundant number, since it is smaller than the sum of its proper divisors (626663392684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423421210100 is a wasteful number, since it uses less digits than its factorization.

423421210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604887464 (or 604887457 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 423421210100 its reverse (1012124324), we get a palindrome (424433334424).

The spelling of 423421210100 in words is "four hundred twenty-three billion, four hundred twenty-one million, two hundred ten thousand, one hundred".