23200123203121 has 2 divisors, whose sum is σ = 23200123203122. Its totient is φ = 23200123203120.

The previous prime is 23200123203119. The next prime is 23200123203143. The reversal of 23200123203121 is 12130232100232.

It is an a-pointer prime, because the next prime (23200123203143) can be obtained adding 23200123203121 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18746605170225 + 4453518032896 = 4329735^2 + 2110336^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200123203121 - 2¹ = 23200123203119 is a prime.

Together with 23200123203119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23200123203092 and 23200123203101.

It is not a weakly prime, because it can be changed into another prime (23200123203151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600061601560 + 11600061601561.

It is an arithmetic number, because the mean of its divisors is an integer number (11600061601561).

Almost surely, 2^{23200123203121} is an apocalyptic number.

It is an amenable number.

23200123203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23200123203121 is an equidigital number, since it uses as much as digits as its factorization.

23200123203121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23200123203121 its reverse (12130232100232), we get a palindrome (35330355303353).

The spelling of 23200123203121 in words is "twenty-three trillion, two hundred billion, one hundred twenty-three million, two hundred three thousand, one hundred twenty-one".