2021113130 has 16 divisors (see below), whose sum is σ = 3706646184. Its totient is φ = 793191360.

The previous prime is 2021113111. The next prime is 2021113147. The reversal of 2021113130 is 313111202.

It can be written as a sum of positive squares in 4 ways, for example, as 1142642809 + 878470321 = 33803^2 + 29639^2 .

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, 1906181 + ... + 1907240.

Almost surely, 2^2021113130 is an apocalyptic number.

2021113130 is a deficient number, since it is larger than the sum of its proper divisors (1685533054).

2021113130 is a wasteful number, since it uses less digits than its factorization.

2021113130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813481.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2021113130 is about 44956.7918116940. The cubic root of 2021113130 is about 1264.3390194652.

Adding to 2021113130 its reverse (313111202), we get a palindrome (2334224332).

The spelling of 2021113130 in words is "two billion, twenty-one million, one hundred thirteen thousand, one hundred thirty".