121331102 has 4 divisors (see below), whose sum is σ = 181996656. Its totient is φ = 60665550.

The previous prime is 121331069. The next prime is 121331107. The reversal of 121331102 is 201133121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201133121 = 7 ⋅28733303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121331107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30332774 + ... + 30332777.

It is an arithmetic number, because the mean of its divisors is an integer number (45499164).

Almost surely, 2^121331102 is an apocalyptic number.

121331102 is a deficient number, since it is larger than the sum of its proper divisors (60665554).

121331102 is an equidigital number, since it uses as much as digits as its factorization.

121331102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60665553.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121331102 is about 11015.0398092789. The cubic root of 121331102 is about 495.0594792996.

Adding to 121331102 its reverse (201133121), we get a palindrome (322464223).

The spelling of 121331102 in words is "one hundred twenty-one million, three hundred thirty-one thousand, one hundred two".