423120203100 has 108 divisors (see below), whose sum is σ = 1515710616784. Its totient is φ = 96713187840.

The previous prime is 423120203083. The next prime is 423120203101. The reversal of 423120203100 is 1302021324.

423120203100 is a `hidden beast` number, since 42 + 312 + 0 + 2 + 0 + 310 + 0 = 666.

It is a super-2 number, since 2×423120203100² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423120203101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33574669 + ... + 33587268.

Almost surely, 2^423120203100 is an apocalyptic number.

It is an amenable number.

423120203100 is an abundant number, since it is smaller than the sum of its proper divisors (1092590413684).

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

423120203100 is a wasteful number, since it uses less digits than its factorization.

423120203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67161964 (or 67161954 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 423120203100 its reverse (1302021324), we get a palindrome (424422224424).

The spelling of 423120203100 in words is "four hundred twenty-three billion, one hundred twenty million, two hundred three thousand, one hundred".