203130331022100 has 144 divisors (see below), whose sum is σ = 649352080556928. Its totient is φ = 48765133148160.

The previous prime is 203130331022039. The next prime is 203130331022119. The reversal of 203130331022100 is 1220133031302.

It is a super-2 number, since 2×203130331022100² (a number of 29 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 47 ways as a sum of consecutive naturals, for example, 865740889 + ... + 865975488.

It is an arithmetic number, because the mean of its divisors is an integer number (4509389448312).

Almost surely, 2^{203130331022100} is an apocalyptic number.

203130331022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130331022100 is an abundant number, since it is smaller than the sum of its proper divisors (446221749534828).

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

203130331022100 is a wasteful number, since it uses less digits than its factorization.

203130331022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731716434 (or 1731716427 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203130331022100 its reverse (1220133031302), we get a palindrome (204350464053402).

The spelling of 203130331022100 in words is "two hundred three trillion, one hundred thirty billion, three hundred thirty-one million, twenty-two thousand, one hundred".