20232100 has 54 divisors (see below), whose sum is σ = 51083970. Its totient is φ = 6935040.

The previous prime is 20232083. The next prime is 20232101. The reversal of 20232100 is 123202.

It can be written as a sum of positive squares in 3 ways, for example, as 1517824 + 18714276 = 1232^2 + 4326^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20232101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2836 + ... + 6964.

Almost surely, 2^20232100 is an apocalyptic number.

20232100 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 20232100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25541985).

20232100 is an abundant number, since it is smaller than the sum of its proper divisors (30851870).

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

20232100 is a wasteful number, since it uses less digits than its factorization.

20232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157 (or 4143 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20232100 is about 4498.0106713969. The cubic root of 20232100 is about 272.4877530057.

Adding to 20232100 its reverse (123202), we get a palindrome (20355302).

The spelling of 20232100 in words is "twenty million, two hundred thirty-two thousand, one hundred".