1121100102 has 20 divisors (see below), whose sum is σ = 2512095036. Its totient is φ = 373699980.

The previous prime is 1121100083. The next prime is 1121100119. The reversal of 1121100102 is 2010011211.

It is a happy number.

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 9 ways as a sum of consecutive naturals, for example, 3460024 + ... + 3460347.

Almost surely, 2^1121100102 is an apocalyptic number.

1121100102 is an abundant number, since it is smaller than the sum of its proper divisors (1390994934).

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

1121100102 is an equidigital number, since it uses as much as digits as its factorization.

1121100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6920385 (or 6920376 counting only the distinct ones).

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

The square root of 1121100102 is about 33482.8329446599. The cubic root of 1121100102 is about 1038.8387253645.

Adding to 1121100102 its reverse (2010011211), we get a palindrome (3131111313).

The spelling of 1121100102 in words is "one billion, one hundred twenty-one million, one hundred thousand, one hundred two".