23020155101 has 2 divisors, whose sum is σ = 23020155102. Its totient is φ = 23020155100.

The previous prime is 23020155031. The next prime is 23020155121. The reversal of 23020155101 is 10155102032.

It is a happy number.

It is an a-pointer prime, because the next prime (23020155121) can be obtained adding 23020155101 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22501500025 + 518655076 = 150005^2 + 22774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23020155101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23020155121) 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, 11510077550 + 11510077551.

It is an arithmetic number, because the mean of its divisors is an integer number (11510077551).

Almost surely, 2^23020155101 is an apocalyptic number.

It is an amenable number.

23020155101 is a deficient number, since it is larger than the sum of its proper divisors (1).

23020155101 is an equidigital number, since it uses as much as digits as its factorization.

23020155101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 23020155101 its reverse (10155102032), we get a palindrome (33175257133).

The spelling of 23020155101 in words is "twenty-three billion, twenty million, one hundred fifty-five thousand, one hundred one".