123302332121 has 4 divisors (see below), whose sum is σ = 123747467172. Its totient is φ = 122857197072.

The previous prime is 123302332099. The next prime is 123302332123. The reversal of 123302332121 is 121233203321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121233203321 = 153359 ⋅790519.

It can be written as a sum of positive squares in 2 ways, for example, as 12904960000 + 110397372121 = 113600^2 + 332261^2 .

It is a cyclic number.

It is not a de Polignac number, because 123302332121 - 2²⁶ = 123235223257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123302332123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222567110 + ... + 222567663.

It is an arithmetic number, because the mean of its divisors is an integer number (30936866793).

Almost surely, 2^123302332121 is an apocalyptic number.

It is an amenable number.

123302332121 is a deficient number, since it is larger than the sum of its proper divisors (445135051).

123302332121 is an equidigital number, since it uses as much as digits as its factorization.

123302332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445135050.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123302332121 its reverse (121233203321), we get a palindrome (244535535442).

The spelling of 123302332121 in words is "one hundred twenty-three billion, three hundred two million, three hundred thirty-two thousand, one hundred twenty-one".