115223121877 has 2 divisors, whose sum is σ = 115223121878. Its totient is φ = 115223121876.

The previous prime is 115223121809. The next prime is 115223121887. The reversal of 115223121877 is 778121322511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65107135921 + 50115985956 = 255161^2 + 223866^2 .

It is a cyclic number.

It is not a de Polignac number, because 115223121877 - 2⁷ = 115223121749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115223121887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57611560938 + 57611560939.

It is an arithmetic number, because the mean of its divisors is an integer number (57611560939).

Almost surely, 2^115223121877 is an apocalyptic number.

It is an amenable number.

115223121877 is a deficient number, since it is larger than the sum of its proper divisors (1).

115223121877 is an equidigital number, since it uses as much as digits as its factorization.

115223121877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 40.

The spelling of 115223121877 in words is "one hundred fifteen billion, two hundred twenty-three million, one hundred twenty-one thousand, eight hundred seventy-seven".