20115043030 has 16 divisors (see below), whose sum is σ = 36261865584. Its totient is φ = 8033842080.

The previous prime is 20115043027. The next prime is 20115043037. The reversal of 20115043030 is 3034051102.

It is a super-2 number, since 2×20115043030² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20115042989 and 20115043007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20115043037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514952 + ... + 1528171.

It is an arithmetic number, because the mean of its divisors is an integer number (2266366599).

Almost surely, 2^20115043030 is an apocalyptic number.

20115043030 is a deficient number, since it is larger than the sum of its proper divisors (16146822554).

20115043030 is a wasteful number, since it uses less digits than its factorization.

20115043030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043791.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 20115043030 its reverse (3034051102), we get a palindrome (23149094132).

The spelling of 20115043030 in words is "twenty billion, one hundred fifteen million, forty-three thousand, thirty".