123345302777 has 2 divisors, whose sum is σ = 123345302778. Its totient is φ = 123345302776.

The previous prime is 123345302719. The next prime is 123345302797. The reversal of 123345302777 is 777203543321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121676090041 + 1669212736 = 348821^2 + 40856^2 .

It is a cyclic number.

It is not a de Polignac number, because 123345302777 - 2¹⁶ = 123345237241 is a prime.

It is not a weakly prime, because it can be changed into another prime (123345302797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61672651388 + 61672651389.

It is an arithmetic number, because the mean of its divisors is an integer number (61672651389).

Almost surely, 2^123345302777 is an apocalyptic number.

It is an amenable number.

123345302777 is a deficient number, since it is larger than the sum of its proper divisors (1).

123345302777 is an equidigital number, since it uses as much as digits as its factorization.

123345302777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 44.

The spelling of 123345302777 in words is "one hundred twenty-three billion, three hundred forty-five million, three hundred two thousand, seven hundred seventy-seven".