121310301223321 has 6 divisors (see below), whose sum is σ = 141116064688410. Its totient is φ = 103980258191376.

The previous prime is 121310301223277. The next prime is 121310301223327. The reversal of 121310301223321 is 123322103013121.

It can be written as a sum of positive squares in only one way, i.e., 87820064167696 + 33490237055625 = 9371236^2 + 5787075^2 .

It is not a de Polignac number, because 121310301223321 - 2³⁵ = 121275941484953 is a prime.

It is a super-2 number, since 2×121310301223321² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121310301223327) 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, 1237860216516 + ... + 1237860216613.

It is an arithmetic number, because the mean of its divisors is an integer number (23519344114735).

Almost surely, 2^{121310301223321} is an apocalyptic number.

It is an amenable number.

121310301223321 is a deficient number, since it is larger than the sum of its proper divisors (19805763465089).

121310301223321 is an equidigital number, since it uses as much as digits as its factorization.

121310301223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475720433143 (or 2475720433136 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 121310301223321 its reverse (123322103013121), we get a palindrome (244632404236442).

The spelling of 121310301223321 in words is "one hundred twenty-one trillion, three hundred ten billion, three hundred one million, two hundred twenty-three thousand, three hundred twenty-one".