100111011010100 has 18 divisors (see below), whose sum is σ = 217240893892134. Its totient is φ = 40044404404000.

The previous prime is 100111011010093. The next prime is 100111011010103. The reversal of 100111011010100 is 1010110111001.

It can be written as a sum of positive squares in 3 ways, for example, as 15508219024 + 100095502791076 = 124532^2 + 10004774^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111011010103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500555054951 + ... + 500555055150.

It is an arithmetic number, because the mean of its divisors is an integer number (12068938549563).

Almost surely, 2^{100111011010100} is an apocalyptic number.

100111011010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100111011010100 is an abundant number, since it is smaller than the sum of its proper divisors (117129882882034).

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

100111011010100 is a wasteful number, since it uses less digits than its factorization.

100111011010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001110110115 (or 1001110110108 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 100111011010100 its reverse (1010110111001), we get a palindrome (101121121121101).

The spelling of 100111011010100 in words is "one hundred trillion, one hundred eleven billion, eleven million, ten thousand, one hundred".