123230477 has 2 divisors, whose sum is σ = 123230478. Its totient is φ = 123230476.

The previous prime is 123230413. The next prime is 123230479. The reversal of 123230477 is 774032321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84529636 + 38700841 = 9194^2 + 6221^2 .

It is a cyclic number.

It is not a de Polignac number, because 123230477 - 2⁶ = 123230413 is a prime.

Together with 123230479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123230479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615238 + 61615239.

It is an arithmetic number, because the mean of its divisors is an integer number (61615239).

Almost surely, 2^123230477 is an apocalyptic number.

It is an amenable number.

123230477 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230477 is an equidigital number, since it uses as much as digits as its factorization.

123230477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 123230477 is about 11100.9223490663. The cubic root of 123230477 is about 497.6294144105.

Adding to 123230477 its reverse (774032321), we get a palindrome (897262798).

The spelling of 123230477 in words is "one hundred twenty-three million, two hundred thirty thousand, four hundred seventy-seven".