10423243261 has 2 divisors, whose sum is σ = 10423243262. Its totient is φ = 10423243260.

The previous prime is 10423243147. The next prime is 10423243267. The reversal of 10423243261 is 16234232401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10078955236 + 344288025 = 100394^2 + 18555^2 .

It is a cyclic number.

It is not a de Polignac number, because 10423243261 - 2⁹ = 10423242749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10423243267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5211621630 + 5211621631.

It is an arithmetic number, because the mean of its divisors is an integer number (5211621631).

Almost surely, 2^10423243261 is an apocalyptic number.

It is an amenable number.

10423243261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10423243261 is an equidigital number, since it uses as much as digits as its factorization.

10423243261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 10423243261 its reverse (16234232401), we get a palindrome (26657475662).

The spelling of 10423243261 in words is "ten billion, four hundred twenty-three million, two hundred forty-three thousand, two hundred sixty-one".