121230321202103 has 4 divisors (see below), whose sum is σ = 121232227432800. Its totient is φ = 121228414971408.

The previous prime is 121230321202079. The next prime is 121230321202141. The reversal of 121230321202103 is 301202123032121.

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

It is a cyclic number.

It is not a de Polignac number, because 121230321202103 - 2¹⁶ = 121230321136567 is a prime.

It is a super-3 number, since 3×121230321202103³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230321201103) 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, 953019950 + ... + 953147147.

It is an arithmetic number, because the mean of its divisors is an integer number (30308056858200).

Almost surely, 2^{121230321202103} is an apocalyptic number.

121230321202103 is a deficient number, since it is larger than the sum of its proper divisors (1906230697).

121230321202103 is an equidigital number, since it uses as much as digits as its factorization.

121230321202103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906230696.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121230321202103 its reverse (301202123032121), we get a palindrome (422432444234224).

The spelling of 121230321202103 in words is "one hundred twenty-one trillion, two hundred thirty billion, three hundred twenty-one million, two hundred two thousand, one hundred three".