23020030320 has 160 divisors (see below), whose sum is σ = 82349110272. Its totient is φ = 5210597376.

The previous prime is 23020030303. The next prime is 23020030337. The reversal of 23020030320 is 2303002032.

It is an interprime number because it is at equal distance from previous prime (23020030303) and next prime (23020030337).

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

It is a self number, because there is not a number n which added to its sum of digits gives 23020030320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106524 + ... + 239556.

Almost surely, 2^23020030320 is an apocalyptic number.

23020030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23020030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41174555136).

23020030320 is an abundant number, since it is smaller than the sum of its proper divisors (59329079952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23020030320 is a wasteful number, since it uses less digits than its factorization.

23020030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133159 (or 133153 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 23020030320 its reverse (2303002032), we get a palindrome (25323032352).

The spelling of 23020030320 in words is "twenty-three billion, twenty million, thirty thousand, three hundred twenty".