1021113313 has 48 divisors (see below), whose sum is σ = 1257596928. Its totient is φ = 823961600.

The previous prime is 1021113307. The next prime is 1021113341. The reversal of 1021113313 is 3133111201.

It is not a de Polignac number, because 1021113313 - 2⁵ = 1021113281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021153313) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 5346048 + ... + 5346238.

It is an arithmetic number, because the mean of its divisors is an integer number (26199936).

Almost surely, 2^1021113313 is an apocalyptic number.

It is an amenable number.

1021113313 is a deficient number, since it is larger than the sum of its proper divisors (236483615).

1021113313 is a wasteful number, since it uses less digits than its factorization.

1021113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1021113313 is about 31954.8636830139. The cubic root of 1021113313 is about 1006.9888136970.

Adding to 1021113313 its reverse (3133111201), we get a palindrome (4154224514).

The spelling of 1021113313 in words is "one billion, twenty-one million, one hundred thirteen thousand, three hundred thirteen".