2021031130 has 16 divisors (see below), whose sum is σ = 3671232840. Its totient is φ = 800995392.

The previous prime is 2021031119. The next prime is 2021031149. The reversal of 2021031130 is 311301202.

It can be written as a sum of positive squares in 4 ways, for example, as 1584597249 + 436433881 = 39807^2 + 20891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2021031130.

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, 925989 + ... + 928168.

Almost surely, 2^2021031130 is an apocalyptic number.

2021031130 is a deficient number, since it is larger than the sum of its proper divisors (1650201710).

2021031130 is a wasteful number, since it uses less digits than its factorization.

2021031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854273.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2021031130 is about 44955.8798156593. The cubic root of 2021031130 is about 1264.3219204386.

Adding to 2021031130 its reverse (311301202), we get a palindrome (2332332332).

The spelling of 2021031130 in words is "two billion, twenty-one million, thirty-one thousand, one hundred thirty".