203311100010100 has 36 divisors (see below), whose sum is σ = 443995183151884. Its totient is φ = 80806449934080.

The previous prime is 203311100010071. The next prime is 203311100010149. The reversal of 203311100010100 is 1010001113302.

It can be written as a sum of positive squares in 6 ways, for example, as 5764453776 + 203305335556324 = 75924^2 + 14258518^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6474860097 + ... + 6474891496.

Almost surely, 2^{203311100010100} is an apocalyptic number.

203311100010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203311100010100 is an abundant number, since it is smaller than the sum of its proper divisors (240684083141784).

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

203311100010100 is a wasteful number, since it uses less digits than its factorization.

203311100010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949751764 (or 12949751757 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 203311100010100 its reverse (1010001113302), we get a palindrome (204321101123402).

The spelling of 203311100010100 in words is "two hundred three trillion, three hundred eleven billion, one hundred million, ten thousand, one hundred".