203020233100 has 72 divisors (see below), whose sum is σ = 451029726000. Its totient is φ = 79295558400.

The previous prime is 203020233079. The next prime is 203020233121. The reversal of 203020233100 is 1332020302.

It is an interprime number because it is at equal distance from previous prime (203020233079) and next prime (203020233121).

It is a super-2 number, since 2×203020233100² (a number of 23 digits) contains 22 as substring.

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, 763630 + ... + 994570.

It is an arithmetic number, because the mean of its divisors is an integer number (6264301750).

Almost surely, 2^203020233100 is an apocalyptic number.

203020233100 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 203020233100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225514863000).

203020233100 is an abundant number, since it is smaller than the sum of its proper divisors (248009492900).

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

203020233100 is a wasteful number, since it uses less digits than its factorization.

203020233100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231163 (or 231156 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 203020233100 its reverse (1332020302), we get a palindrome (204352253402).

The spelling of 203020233100 in words is "two hundred three billion, twenty million, two hundred thirty-three thousand, one hundred".