121302210102103 has 4 divisors (see below), whose sum is σ = 125485044933240. Its totient is φ = 117119375270968.

The previous prime is 121302210102061. The next prime is 121302210102137. The reversal of 121302210102103 is 301201012203121.

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-121302210102103 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 (121302210102163) 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, 2091417415525 + ... + 2091417415582.

It is an arithmetic number, because the mean of its divisors is an integer number (31371261233310).

Almost surely, 2^{121302210102103} is an apocalyptic number.

121302210102103 is a deficient number, since it is larger than the sum of its proper divisors (4182834831137).

121302210102103 is an equidigital number, since it uses as much as digits as its factorization.

121302210102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182834831136.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121302210102103 its reverse (301201012203121), we get a palindrome (422503222305224).

The spelling of 121302210102103 in words is "one hundred twenty-one trillion, three hundred two billion, two hundred ten million, one hundred two thousand, one hundred three".