23431444144261 has 2 divisors, whose sum is σ = 23431444144262. Its totient is φ = 23431444144260.

The previous prime is 23431444144201. The next prime is 23431444144279. The reversal of 23431444144261 is 16244144413432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12549263740036 + 10882180404225 = 3542494^2 + 3298815^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431444144261 - 2¹¹ = 23431444142213 is a prime.

It is a super-2 number, since 2×23431444144261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23431444144201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715722072130 + 11715722072131.

It is an arithmetic number, because the mean of its divisors is an integer number (11715722072131).

Almost surely, 2^{23431444144261} is an apocalyptic number.

It is an amenable number.

23431444144261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431444144261 is an equidigital number, since it uses as much as digits as its factorization.

23431444144261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 43.

Adding to 23431444144261 its reverse (16244144413432), we get a palindrome (39675588557693).

The spelling of 23431444144261 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred forty-four million, one hundred forty-four thousand, two hundred sixty-one".