423621220203 has 12 divisors (see below), whose sum is σ = 626821643448. Its totient is φ = 275525996640.

The previous prime is 423621220201. The next prime is 423621220213. The reversal of 423621220203 is 302022126324.

It is a happy number.

423621220203 is a `hidden beast` number, since 4 + 236 + 2 + 1 + 220 + 203 = 666.

It is not a de Polignac number, because 423621220203 - 2¹ = 423621220201 is a prime.

It is a super-2 number, since 2×423621220203² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423621220201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574012125 + ... + 574012862.

It is an arithmetic number, because the mean of its divisors is an integer number (52235136954).

Almost surely, 2^423621220203 is an apocalyptic number.

423621220203 is a deficient number, since it is larger than the sum of its proper divisors (203200423245).

423621220203 is a wasteful number, since it uses less digits than its factorization.

423621220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148025034 (or 1148025031 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 423621220203 its reverse (302022126324), we get a palindrome (725643346527).

The spelling of 423621220203 in words is "four hundred twenty-three billion, six hundred twenty-one million, two hundred twenty thousand, two hundred three".