203432010100 has 144 divisors (see below), whose sum is σ = 524407060800. Its totient is φ = 67665024000.

The previous prime is 203432010079. The next prime is 203432010101. The reversal of 203432010100 is 1010234302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203432010101) 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, 438280 + ... + 773920.

It is an arithmetic number, because the mean of its divisors is an integer number (3641715700).

Almost surely, 2^203432010100 is an apocalyptic number.

203432010100 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 203432010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262203530400).

203432010100 is an abundant number, since it is smaller than the sum of its proper divisors (320975050700).

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

203432010100 is a wasteful number, since it uses less digits than its factorization.

203432010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335714 (or 335707 counting only the distinct ones).

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

Adding to 203432010100 its reverse (1010234302), we get a palindrome (204442244402).

The spelling of 203432010100 in words is "two hundred three billion, four hundred thirty-two million, ten thousand, one hundred".