23534454213503 has 4 divisors (see below), whose sum is σ = 23534609155728. Its totient is φ = 23534299271280.

The previous prime is 23534454213469. The next prime is 23534454213509. The reversal of 23534454213503 is 30531245443532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23534454213503 - 2⁸ = 23534454213247 is a prime.

It is a super-2 number, since 2×23534454213503² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23534454213509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77243051 + ... + 77547132.

It is an arithmetic number, because the mean of its divisors is an integer number (5883652288932).

Almost surely, 2^{23534454213503} is an apocalyptic number.

23534454213503 is a deficient number, since it is larger than the sum of its proper divisors (154942225).

23534454213503 is a wasteful number, since it uses less digits than its factorization.

23534454213503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154942224.

The product of its (nonzero) digits is 2592000, while the sum is 44.

The spelling of 23534454213503 in words is "twenty-three trillion, five hundred thirty-four billion, four hundred fifty-four million, two hundred thirteen thousand, five hundred three".