2021112530 has 16 divisors (see below), whose sum is σ = 3638779200. Its totient is φ = 808272432.

The previous prime is 2021112497. The next prime is 2021112601. The reversal of 2021112530 is 352111202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021112499 and 2021112508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34571 + ... + 72369.

It is an arithmetic number, because the mean of its divisors is an integer number (227423700).

Almost surely, 2^2021112530 is an apocalyptic number.

2021112530 is a deficient number, since it is larger than the sum of its proper divisors (1617666670).

2021112530 is a wasteful number, since it uses less digits than its factorization.

2021112530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43153.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2021112530 is about 44956.7851386195. The cubic root of 2021112530 is about 1264.3388943521.

Adding to 2021112530 its reverse (352111202), we get a palindrome (2373223732).

The spelling of 2021112530 in words is "two billion, twenty-one million, one hundred twelve thousand, five hundred thirty".