1112102100 has 54 divisors (see below), whose sum is σ = 3485825070. Its totient is φ = 296560320.

The previous prime is 1112102087. The next prime is 1112102137. The reversal of 1112102100 is 12012111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12996 + 1112089104 = 114^2 + 33348^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 616935 + ... + 618734.

Almost surely, 2^1112102100 is an apocalyptic number.

1112102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112102100 is an abundant number, since it is smaller than the sum of its proper divisors (2373722970).

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

1112102100 is a wasteful number, since it uses less digits than its factorization.

1112102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235689 (or 1235679 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1112102100 is about 33348.1948536949. The cubic root of 1112102100 is about 1036.0520004409.

Adding to 1112102100 its reverse (12012111), we get a palindrome (1124114211).

The spelling of 1112102100 in words is "one billion, one hundred twelve million, one hundred two thousand, one hundred".