203101010100 has 108 divisors (see below), whose sum is σ = 664287545376. Its totient is φ = 51805469760.

The previous prime is 203101010051. The next prime is 203101010117. The reversal of 203101010100 is 1010101302.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4885122 + ... + 4926521.

Almost surely, 2^203101010100 is an apocalyptic number.

203101010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203101010100 is an abundant number, since it is smaller than the sum of its proper divisors (461186535276).

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

203101010100 is a wasteful number, since it uses less digits than its factorization.

203101010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811686 (or 9811676 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 203101010100 its reverse (1010101302), we get a palindrome (204111111402).

The spelling of 203101010100 in words is "two hundred three billion, one hundred one million, ten thousand, one hundred".