1011112102100 has 36 divisors (see below), whose sum is σ = 2194389500604. Its totient is φ = 404393921280.

The previous prime is 1011112102093. The next prime is 1011112102171. The reversal of 1011112102100 is 12012111101.

It can be written as a sum of positive squares in 6 ways, for example, as 312888084496 + 698224017604 = 559364^2 + 835598^2 .

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, 166802 + ... + 1431798.

Almost surely, 2^{1011112102100} is an apocalyptic number.

1011112102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011112102100 is an abundant number, since it is smaller than the sum of its proper divisors (1183277398504).

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

1011112102100 is a wasteful number, since it uses less digits than its factorization.

1011112102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273004 (or 1272997 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011112102100 its reverse (12012111101), we get a palindrome (1023124213201).

Subtracting from 1011112102100 its reverse (12012111101), we obtain a palindrome (999099990999).

The spelling of 1011112102100 in words is "one trillion, eleven billion, one hundred twelve million, one hundred two thousand, one hundred".