23534043503 has 2 divisors, whose sum is σ = 23534043504. Its totient is φ = 23534043502.

The previous prime is 23534043493. The next prime is 23534043563. The reversal of 23534043503 is 30534043532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23534043503 - 2²⁴ = 23517266287 is a prime.

It is a super-2 number, since 2×23534043503² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23534043503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23534043563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11767021751 + 11767021752.

It is an arithmetic number, because the mean of its divisors is an integer number (11767021752).

Almost surely, 2^23534043503 is an apocalyptic number.

23534043503 is a deficient number, since it is larger than the sum of its proper divisors (1).

23534043503 is an equidigital number, since it uses as much as digits as its factorization.

23534043503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 32.

The spelling of 23534043503 in words is "twenty-three billion, five hundred thirty-four million, forty-three thousand, five hundred three".