23020020015 has 16 divisors (see below), whose sum is σ = 37024874496. Its totient is φ = 12213063200.

The previous prime is 23020020007. The next prime is 23020020109. The reversal of 23020020015 is 51002002032.

It is not a de Polignac number, because 23020020015 - 2³ = 23020020007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 23020019976 and 23020020003.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4014591 + ... + 4020320.

It is an arithmetic number, because the mean of its divisors is an integer number (2314054656).

Almost surely, 2^23020020015 is an apocalyptic number.

23020020015 is a deficient number, since it is larger than the sum of its proper divisors (14004854481).

23020020015 is a wasteful number, since it uses less digits than its factorization.

23020020015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035110.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 23020020015 its reverse (51002002032), we get a palindrome (74022022047).

The spelling of 23020020015 in words is "twenty-three billion, twenty million, twenty thousand, fifteen".