121131102 has 16 divisors (see below), whose sum is σ = 242484480. Its totient is φ = 40339992.

The previous prime is 121131077. The next prime is 121131121. The reversal of 121131102 is 201131121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702 + ... + 15657.

It is an arithmetic number, because the mean of its divisors is an integer number (15155280).

Almost surely, 2^121131102 is an apocalyptic number.

121131102 is an abundant number, since it is smaller than the sum of its proper divisors (121353378).

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

121131102 is a wasteful number, since it uses less digits than its factorization.

121131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18527.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 121131102 is about 11005.9575685172. The cubic root of 121131102 is about 494.7873139954.

Adding to 121131102 its reverse (201131121), we get a palindrome (322262223).

The spelling of 121131102 in words is "one hundred twenty-one million, one hundred thirty-one thousand, one hundred two".