123213011321177 has 2 divisors, whose sum is σ = 123213011321178. Its totient is φ = 123213011321176.

The previous prime is 123213011321143. The next prime is 123213011321287. The reversal of 123213011321177 is 771123110312321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120360844286281 + 2852167034896 = 10970909^2 + 1688836^2 .

It is a cyclic number.

It is not a de Polignac number, because 123213011321177 - 2²⁰ = 123213010272601 is a prime.

It is not a weakly prime, because it can be changed into another prime (123213011320177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61606505660588 + 61606505660589.

It is an arithmetic number, because the mean of its divisors is an integer number (61606505660589).

Almost surely, 2^{123213011321177} is an apocalyptic number.

It is an amenable number.

123213011321177 is a deficient number, since it is larger than the sum of its proper divisors (1).

123213011321177 is an equidigital number, since it uses as much as digits as its factorization.

123213011321177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

Adding to 123213011321177 its reverse (771123110312321), we get a palindrome (894336121633498).

The spelling of 123213011321177 in words is "one hundred twenty-three trillion, two hundred thirteen billion, eleven million, three hundred twenty-one thousand, one hundred seventy-seven".