123231030277 has 2 divisors, whose sum is σ = 123231030278. Its totient is φ = 123231030276.

The previous prime is 123231030269. The next prime is 123231030313. The reversal of 123231030277 is 772030132321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62887599076 + 60343431201 = 250774^2 + 245649^2 .

It is a cyclic number.

It is not a de Polignac number, because 123231030277 - 2³ = 123231030269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231036277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615515138 + 61615515139.

It is an arithmetic number, because the mean of its divisors is an integer number (61615515139).

Almost surely, 2^123231030277 is an apocalyptic number.

It is an amenable number.

123231030277 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231030277 is an equidigital number, since it uses as much as digits as its factorization.

123231030277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

Adding to 123231030277 its reverse (772030132321), we get a palindrome (895261162598).

The spelling of 123231030277 in words is "one hundred twenty-three billion, two hundred thirty-one million, thirty thousand, two hundred seventy-seven".