23120221210109 has 2 divisors, whose sum is σ = 23120221210110. Its totient is φ = 23120221210108.

The previous prime is 23120221210063. The next prime is 23120221210133. The reversal of 23120221210109 is 90101212202132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23007160510084 + 113060700025 = 4796578^2 + 336245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23120221210109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120221210159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560110605054 + 11560110605055.

It is an arithmetic number, because the mean of its divisors is an integer number (11560110605055).

Almost surely, 2^{23120221210109} is an apocalyptic number.

It is an amenable number.

23120221210109 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120221210109 is an equidigital number, since it uses as much as digits as its factorization.

23120221210109 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 26.

The spelling of 23120221210109 in words is "twenty-three trillion, one hundred twenty billion, two hundred twenty-one million, two hundred ten thousand, one hundred nine".