121321211103323 has 16 divisors (see below), whose sum is σ = 151832737875456. Its totient is φ = 94176556131840.

The previous prime is 121321211103299. The next prime is 121321211103329. The reversal of 121321211103323 is 323301112123121.

It is not a de Polignac number, because 121321211103323 - 2⁶ = 121321211103259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121321211103292 and 121321211103301.

It is not an unprimeable number, because it can be changed into a prime (121321211103329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2995417286 + ... + 2995457787.

It is an arithmetic number, because the mean of its divisors is an integer number (9489546117216).

Almost surely, 2^{121321211103323} is an apocalyptic number.

121321211103323 is a deficient number, since it is larger than the sum of its proper divisors (30511526772133).

121321211103323 is a wasteful number, since it uses less digits than its factorization.

121321211103323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990875354.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 121321211103323 its reverse (323301112123121), we get a palindrome (444622323226444).

The spelling of 121321211103323 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred eleven million, one hundred three thousand, three hundred twenty-three".