23042120543 has 8 divisors (see below), whose sum is σ = 24972648288. Its totient is φ = 21134172384.

The previous prime is 23042120531. The next prime is 23042120587. The reversal of 23042120543 is 34502124032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23042120543 - 2²⁸ = 22773685087 is a prime.

It is a super-2 number, since 2×23042120543² (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 (23042120503) 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 7 ways as a sum of consecutive naturals, for example, 5642771 + ... + 5646852.

It is an arithmetic number, because the mean of its divisors is an integer number (3121581036).

Almost surely, 2^23042120543 is an apocalyptic number.

23042120543 is a deficient number, since it is larger than the sum of its proper divisors (1930527745).

23042120543 is a wasteful number, since it uses less digits than its factorization.

23042120543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11289793.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 23042120543 its reverse (34502124032), we get a palindrome (57544244575).

The spelling of 23042120543 in words is "twenty-three billion, forty-two million, one hundred twenty thousand, five hundred forty-three".