423210030421 has 16 divisors (see below), whose sum is σ = 435199564800. Its totient is φ = 411424963200.

The previous prime is 423210030401. The next prime is 423210030427. The reversal of 423210030421 is 124030012324.

It is a de Polignac number, because none of the positive numbers 2^k-423210030421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423210030392 and 423210030401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423210030427) 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, 1515480 + ... + 1772878.

It is an arithmetic number, because the mean of its divisors is an integer number (27199972800).

Almost surely, 2^423210030421 is an apocalyptic number.

It is an amenable number.

423210030421 is a deficient number, since it is larger than the sum of its proper divisors (11989534379).

423210030421 is a wasteful number, since it uses less digits than its factorization.

423210030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257796.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 423210030421 its reverse (124030012324), we get a palindrome (547240042745).

The spelling of 423210030421 in words is "four hundred twenty-three billion, two hundred ten million, thirty thousand, four hundred twenty-one".