23261691503 has 2 divisors, whose sum is σ = 23261691504. Its totient is φ = 23261691502.

The previous prime is 23261691491. The next prime is 23261691511. The reversal of 23261691503 is 30519616232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23261691503 - 2¹⁰ = 23261690479 is a prime.

It is a super-2 number, since 2×23261691503² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23261621503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11630845751 + 11630845752.

It is an arithmetic number, because the mean of its divisors is an integer number (11630845752).

Almost surely, 2^23261691503 is an apocalyptic number.

23261691503 is a deficient number, since it is larger than the sum of its proper divisors (1).

23261691503 is an equidigital number, since it uses as much as digits as its factorization.

23261691503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 23261691503 in words is "twenty-three billion, two hundred sixty-one million, six hundred ninety-one thousand, five hundred three".