26823000121 has 2 divisors, whose sum is σ = 26823000122. Its totient is φ = 26823000120.

The previous prime is 26823000107. The next prime is 26823000133. The reversal of 26823000121 is 12100032862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26634240000 + 188760121 = 163200^2 + 13739^2 .

It is a cyclic number.

It is not a de Polignac number, because 26823000121 - 2¹³ = 26822991929 is a prime.

It is not a weakly prime, because it can be changed into another prime (26823000101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13411500060 + 13411500061.

It is an arithmetic number, because the mean of its divisors is an integer number (13411500061).

Almost surely, 2^26823000121 is an apocalyptic number.

It is an amenable number.

26823000121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26823000121 is an equidigital number, since it uses as much as digits as its factorization.

26823000121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 26823000121 its reverse (12100032862), we get a palindrome (38923032983).

The spelling of 26823000121 in words is "twenty-six billion, eight hundred twenty-three million, one hundred twenty-one", and thus it is an aban number.