23110302121 has 2 divisors, whose sum is σ = 23110302122. Its totient is φ = 23110302120.

The previous prime is 23110302119. The next prime is 23110302133. The reversal of 23110302121 is 12120301132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20181327721 + 2928974400 = 142061^2 + 54120^2 .

It is a cyclic number.

It is not a de Polignac number, because 23110302121 - 2¹ = 23110302119 is a prime.

Together with 23110302119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23110302095 and 23110302104.

It is not a weakly prime, because it can be changed into another prime (23110302191) 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, 11555151060 + 11555151061.

It is an arithmetic number, because the mean of its divisors is an integer number (11555151061).

Almost surely, 2^23110302121 is an apocalyptic number.

It is an amenable number.

23110302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23110302121 is an equidigital number, since it uses as much as digits as its factorization.

23110302121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23110302121 its reverse (12120301132), we get a palindrome (35230603253).

The spelling of 23110302121 in words is "twenty-three billion, one hundred ten million, three hundred two thousand, one hundred twenty-one".