23203211077 has 2 divisors, whose sum is σ = 23203211078. Its totient is φ = 23203211076.

The previous prime is 23203211071. The next prime is 23203211089. The reversal of 23203211077 is 77011230232.

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., 22390333956 + 812877121 = 149634^2 + 28511^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203211077 - 2³ = 23203211069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23203211071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601605538 + 11601605539.

It is an arithmetic number, because the mean of its divisors is an integer number (11601605539).

Almost surely, 2^23203211077 is an apocalyptic number.

It is an amenable number.

23203211077 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203211077 is an equidigital number, since it uses as much as digits as its factorization.

23203211077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 23203211077 in words is "twenty-three billion, two hundred three million, two hundred eleven thousand, seventy-seven".