123213122032201 has 4 divisors (see below), whose sum is σ = 123213173940612. Its totient is φ = 123213070123792.

The previous prime is 123213122032199. The next prime is 123213122032237. The reversal of 123213122032201 is 102230221312321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63178890705225 + 60034231326976 = 7948515^2 + 7748176^2 .

It is a cyclic number.

It is not a de Polignac number, because 123213122032201 - 2¹ = 123213122032199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123213122032241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22214050 + ... + 27200923.

It is an arithmetic number, because the mean of its divisors is an integer number (30803293485153).

Almost surely, 2^{123213122032201} is an apocalyptic number.

It is an amenable number.

123213122032201 is a deficient number, since it is larger than the sum of its proper divisors (51908411).

123213122032201 is an equidigital number, since it uses as much as digits as its factorization.

123213122032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51908410.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123213122032201 its reverse (102230221312321), we get a palindrome (225443343344522).

The spelling of 123213122032201 in words is "one hundred twenty-three trillion, two hundred thirteen billion, one hundred twenty-two million, thirty-two thousand, two hundred one".