121323302210123 has 16 divisors (see below), whose sum is σ = 131610630905376. Its totient is φ = 111172382150400.

The previous prime is 121323302210111. The next prime is 121323302210129. The reversal of 121323302210123 is 321012203323121.

It is a cyclic number.

It is not a de Polignac number, because 121323302210123 - 2¹² = 121323302206027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121323302210092 and 121323302210101.

It is not an unprimeable number, because it can be changed into a prime (121323302210129) 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, 324134840 + ... + 324508922.

It is an arithmetic number, because the mean of its divisors is an integer number (8225664431586).

Almost surely, 2^{121323302210123} is an apocalyptic number.

121323302210123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

121323302210123 is a deficient number, since it is larger than the sum of its proper divisors (10287328695253).

121323302210123 is a wasteful number, since it uses less digits than its factorization.

121323302210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556334.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121323302210123 its reverse (321012203323121), we get a palindrome (442335505533244).

The spelling of 121323302210123 in words is "one hundred twenty-one trillion, three hundred twenty-three billion, three hundred two million, two hundred ten thousand, one hundred twenty-three".