423422123100 has 144 divisors (see below), whose sum is σ = 1293986762880. Its totient is φ = 106604294400.

The previous prime is 423422123093. The next prime is 423422123101. The reversal of 423422123100 is 1321224324.

It is a happy number.

It is a super-2 number, since 2×423422123100² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423422123101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1543335 + ... + 1796865.

Almost surely, 2^423422123100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423422123100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646993381440).

423422123100 is an abundant number, since it is smaller than the sum of its proper divisors (870564639780).

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

423422123100 is a wasteful number, since it uses less digits than its factorization.

423422123100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253860 (or 253853 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 423422123100 its reverse (1321224324), we get a palindrome (424743347424).

The spelling of 423422123100 in words is "four hundred twenty-three billion, four hundred twenty-two million, one hundred twenty-three thousand, one hundred".