123377 has 2 divisors, whose sum is σ = 123378. Its totient is φ = 123376.

The previous prime is 123373. The next prime is 123379. The reversal of 123377 is 773321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118336 + 5041 = 344^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 123377 - 2² = 123373 is a prime.

Together with 123379, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61688 + 61689.

It is an arithmetic number, because the mean of its divisors is an integer number (61689).

2¹²³³⁷⁷ is an apocalyptic number.

It is an amenable number.

123377 is a deficient number, since it is larger than the sum of its proper divisors (1).

123377 is an equidigital number, since it uses as much as digits as its factorization.

123377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 882, while the sum is 23.

The square root of 123377 is about 351.2506227752. The cubic root of 123377 is about 49.7826566059.

Adding to 123377 its reverse (773321), we get a palindrome (896698).

The spelling of 123377 in words is "one hundred twenty-three thousand, three hundred seventy-seven", and thus it is an iban number.