121210113303103 has 4 divisors (see below), whose sum is σ = 132229214512488. Its totient is φ = 110191012093720.

The previous prime is 121210113303053. The next prime is 121210113303131. The reversal of 121210113303103 is 301303311012121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210113303103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210113303143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5509550604676 + ... + 5509550604697.

It is an arithmetic number, because the mean of its divisors is an integer number (33057303628122).

Almost surely, 2^{121210113303103} is an apocalyptic number.

121210113303103 is a deficient number, since it is larger than the sum of its proper divisors (11019101209385).

121210113303103 is a wasteful number, since it uses less digits than its factorization.

121210113303103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11019101209384.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 121210113303103 its reverse (301303311012121), we get a palindrome (422513424315224).

The spelling of 121210113303103 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred thirteen million, three hundred three thousand, one hundred three".