23120110321261 has 2 divisors, whose sum is σ = 23120110321262. Its totient is φ = 23120110321260.

The previous prime is 23120110321223. The next prime is 23120110321303. The reversal of 23120110321261 is 16212301102132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18715963178025 + 4404147143236 = 4326195^2 + 2098606^2 .

It is a cyclic number.

It is not a de Polignac number, because 23120110321261 - 2²⁹ = 23119573450349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23120110321661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560055160630 + 11560055160631.

It is an arithmetic number, because the mean of its divisors is an integer number (11560055160631).

Almost surely, 2^{23120110321261} is an apocalyptic number.

It is an amenable number.

23120110321261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23120110321261 is an equidigital number, since it uses as much as digits as its factorization.

23120110321261 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 25.

Adding to 23120110321261 its reverse (16212301102132), we get a palindrome (39332411423393).

The spelling of 23120110321261 in words is "twenty-three trillion, one hundred twenty billion, one hundred ten million, three hundred twenty-one thousand, two hundred sixty-one".