23100077477 has 2 divisors, whose sum is σ = 23100077478. Its totient is φ = 23100077476.

The previous prime is 23100077461. The next prime is 23100077501. The reversal of 23100077477 is 77477000132.

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., 13751314756 + 9348762721 = 117266^2 + 96689^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100077477 - 2⁴ = 23100077461 is a prime.

It is a super-2 number, since 2×23100077477² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23100077477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23100077437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550038738 + 11550038739.

It is an arithmetic number, because the mean of its divisors is an integer number (11550038739).

Almost surely, 2^23100077477 is an apocalyptic number.

It is an amenable number.

23100077477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100077477 is an equidigital number, since it uses as much as digits as its factorization.

23100077477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57624, while the sum is 38.

The spelling of 23100077477 in words is "twenty-three billion, one hundred million, seventy-seven thousand, four hundred seventy-seven".