23020155043 has 4 divisors (see below), whose sum is σ = 23025054528. Its totient is φ = 23015255560.

The previous prime is 23020155031. The next prime is 23020155101. The reversal of 23020155043 is 34055102032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23020155043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23020154999 and 23020155017.

It is not an unprimeable number, because it can be changed into a prime (23020155343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2442688 + ... + 2452093.

It is an arithmetic number, because the mean of its divisors is an integer number (5756263632).

Almost surely, 2^23020155043 is an apocalyptic number.

23020155043 is a deficient number, since it is larger than the sum of its proper divisors (4899485).

23020155043 is an equidigital number, since it uses as much as digits as its factorization.

23020155043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899484.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 23020155043 its reverse (34055102032), we get a palindrome (57075257075).

The spelling of 23020155043 in words is "twenty-three billion, twenty million, one hundred fifty-five thousand, forty-three".