2021111030 has 32 divisors (see below), whose sum is σ = 3758607360. Its totient is φ = 781688160.

The previous prime is 2021110981. The next prime is 2021111041. The reversal of 2021111030 is 301111202.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499877 + ... + 503903.

It is an arithmetic number, because the mean of its divisors is an integer number (117456480).

Almost surely, 2^2021111030 is an apocalyptic number.

2021111030 is a deficient number, since it is larger than the sum of its proper divisors (1737496330).

2021111030 is a wasteful number, since it uses less digits than its factorization.

2021111030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5684.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2021111030 is about 44956.7684559289. The cubic root of 2021111030 is about 1264.3385815691.

Adding to 2021111030 its reverse (301111202), we get a palindrome (2322222232).

The spelling of 2021111030 in words is "two billion, twenty-one million, one hundred eleven thousand, thirty".