121230321202321 has 6 divisors (see below), whose sum is σ = 123319898704322. Its totient is φ = 119175569992080.

The previous prime is 121230321202301. The next prime is 121230321202327. The reversal of 121230321202321 is 123202123032121.

It can be written as a sum of positive squares in only one way, i.e., 88561952061696 + 32668369140625 = 9410736^2 + 5715625^2 .

It is a de Polignac number, because none of the positive numbers 2^k-121230321202321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121230321202327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17413142340 + ... + 17413149301.

Almost surely, 2^{121230321202321} is an apocalyptic number.

It is an amenable number.

121230321202321 is a deficient number, since it is larger than the sum of its proper divisors (2089577502001).

121230321202321 is an frugal number, since it uses more digits than its factorization.

121230321202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34826291759 (or 34826291700 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121230321202321 its reverse (123202123032121), we get a palindrome (244432444234442).

The spelling of 121230321202321 in words is "one hundred twenty-one trillion, two hundred thirty billion, three hundred twenty-one million, two hundred two thousand, three hundred twenty-one".