123132212310121 has 4 divisors (see below), whose sum is σ = 140722528354432. Its totient is φ = 105541896265812.

The previous prime is 123132212310101. The next prime is 123132212310179. The reversal of 123132212310121 is 121013212231321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123132212310121 - 2¹⁵ = 123132212277353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132212310101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795158022145 + ... + 8795158022158.

It is an arithmetic number, because the mean of its divisors is an integer number (35180632088608).

Almost surely, 2^{123132212310121} is an apocalyptic number.

It is an amenable number.

123132212310121 is a deficient number, since it is larger than the sum of its proper divisors (17590316044311).

123132212310121 is an equidigital number, since it uses as much as digits as its factorization.

123132212310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17590316044310.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 123132212310121 its reverse (121013212231321), we get a palindrome (244145424541442).

The spelling of 123132212310121 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, two hundred twelve million, three hundred ten thousand, one hundred twenty-one".