123132330121 has 2 divisors, whose sum is σ = 123132330122. Its totient is φ = 123132330120.

The previous prime is 123132330089. The next prime is 123132330127. The reversal of 123132330121 is 121033231321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70787923600 + 52344406521 = 266060^2 + 228789^2 .

It is a cyclic number.

It is not a de Polignac number, because 123132330121 - 2⁵ = 123132330089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123132330092 and 123132330101.

It is not a weakly prime, because it can be changed into another prime (123132330127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61566165060 + 61566165061.

It is an arithmetic number, because the mean of its divisors is an integer number (61566165061).

Almost surely, 2^123132330121 is an apocalyptic number.

It is an amenable number.

123132330121 is a deficient number, since it is larger than the sum of its proper divisors (1).

123132330121 is an equidigital number, since it uses as much as digits as its factorization.

123132330121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123132330121 its reverse (121033231321), we get a palindrome (244165561442).

The spelling of 123132330121 in words is "one hundred twenty-three billion, one hundred thirty-two million, three hundred thirty thousand, one hundred twenty-one".