121513102 has 4 divisors (see below), whose sum is σ = 182269656. Its totient is φ = 60756550.

The previous prime is 121513057. The next prime is 121513187. The reversal of 121513102 is 201315121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30378274 + ... + 30378277.

It is an arithmetic number, because the mean of its divisors is an integer number (45567414).

Almost surely, 2^121513102 is an apocalyptic number.

121513102 is a deficient number, since it is larger than the sum of its proper divisors (60756554).

121513102 is an equidigital number, since it uses as much as digits as its factorization.

121513102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60756553.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 121513102 is about 11023.2981452921. The cubic root of 121513102 is about 495.3068899251.

Adding to 121513102 its reverse (201315121), we get a palindrome (322828223).

The spelling of 121513102 in words is "one hundred twenty-one million, five hundred thirteen thousand, one hundred two".