20223123100 has 72 divisors (see below), whose sum is σ = 46778950400. Its totient is φ = 7566436800.

The previous prime is 20223123077. The next prime is 20223123113. The reversal of 20223123100 is 132132202.

It is a super-2 number, since 2×20223123100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82735 + ... + 217465.

Almost surely, 2^20223123100 is an apocalyptic number.

20223123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223123100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23389475200).

20223123100 is an abundant number, since it is smaller than the sum of its proper divisors (26555827300).

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

20223123100 is a wasteful number, since it uses less digits than its factorization.

20223123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134843 (or 134836 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20223123100 its reverse (132132202), we get a palindrome (20355255302).

The spelling of 20223123100 in words is "twenty billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred".