23335442143 has 64 divisors (see below), whose sum is σ = 27831767040. Its totient is φ = 19426708224.

The previous prime is 23335442113. The next prime is 23335442147. The reversal of 23335442143 is 34124453332.

It is a de Polignac number, because none of the positive numbers 2^k-23335442143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23335442099 and 23335442108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23335442147) 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 63 ways as a sum of consecutive naturals, for example, 319663555 + ... + 319663627.

It is an arithmetic number, because the mean of its divisors is an integer number (434871360).

Almost surely, 2^23335442143 is an apocalyptic number.

23335442143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23335442143 is a deficient number, since it is larger than the sum of its proper divisors (4496324897).

23335442143 is an equidigital number, since it uses as much as digits as its factorization.

23335442143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 199 counting only the distinct ones).

The product of its digits is 103680, while the sum is 34.

Adding to 23335442143 its reverse (34124453332), we get a palindrome (57459895475).

The spelling of 23335442143 in words is "twenty-three billion, three hundred thirty-five million, four hundred forty-two thousand, one hundred forty-three".