23043353453 has 4 divisors (see below), whose sum is σ = 23043739008. Its totient is φ = 23042967900.

The previous prime is 23043353449. The next prime is 23043353479. The reversal of 23043353453 is 35435334032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23043353453 - 2² = 23043353449 is a prime.

It is a super-2 number, since 2×23043353453² (a number of 22 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 (23043353423) 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 in 3 ways as a sum of consecutive naturals, for example, 81851 + ... + 229752.

It is an arithmetic number, because the mean of its divisors is an integer number (5760934752).

Almost surely, 2^23043353453 is an apocalyptic number.

It is an amenable number.

23043353453 is a deficient number, since it is larger than the sum of its proper divisors (385555).

23043353453 is an equidigital number, since it uses as much as digits as its factorization.

23043353453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385554.

The product of its (nonzero) digits is 194400, while the sum is 35.

Adding to 23043353453 its reverse (35435334032), we get a palindrome (58478687485).

The spelling of 23043353453 in words is "twenty-three billion, forty-three million, three hundred fifty-three thousand, four hundred fifty-three".