1121311110100 has 18 divisors (see below), whose sum is σ = 2433245109134. Its totient is φ = 448524444000.

The previous prime is 1121311110089. The next prime is 1121311110137. The reversal of 1121311110100 is 10111131211.

It can be written as a sum of positive squares in 3 ways, for example, as 41278861584 + 1080032248516 = 203172^2 + 1039246^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5606555451 + ... + 5606555650.

Almost surely, 2^{1121311110100} is an apocalyptic number.

1121311110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121311110100 is an abundant number, since it is smaller than the sum of its proper divisors (1311933999034).

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

1121311110100 is a wasteful number, since it uses less digits than its factorization.

1121311110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11213111115 (or 11213111108 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 1121311110100 its reverse (10111131211), we get a palindrome (1131422241311).

The spelling of 1121311110100 in words is "one trillion, one hundred twenty-one billion, three hundred eleven million, one hundred ten thousand, one hundred".