20115000324 has 96 divisors (see below), whose sum is σ = 54430548480. Its totient is φ = 6417964800.

The previous prime is 20115000293. The next prime is 20115000371. The reversal of 20115000324 is 42300051102.

It is a super-2 number, since 2×20115000324² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20115000297 and 20115000306.

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, 191829 + ... + 277539.

It is an arithmetic number, because the mean of its divisors is an integer number (566984880).

Almost surely, 2^20115000324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20115000324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27215274240).

20115000324 is an abundant number, since it is smaller than the sum of its proper divisors (34315548156).

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

20115000324 is a wasteful number, since it uses less digits than its factorization.

20115000324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85818 (or 85810 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 20115000324 its reverse (42300051102), we get a palindrome (62415051426).

The spelling of 20115000324 in words is "twenty billion, one hundred fifteen million, three hundred twenty-four", and thus it is an aban number.