1021333113 has 12 divisors (see below), whose sum is σ = 1476167680. Its totient is φ = 680469336.

The previous prime is 1021333097. The next prime is 1021333127. The reversal of 1021333113 is 3113331201.

It is a happy number.

It is not a de Polignac number, because 1021333113 - 2⁴ = 1021333097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021333153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19153 + ... + 49086.

Almost surely, 2^1021333113 is an apocalyptic number.

It is an amenable number.

1021333113 is a deficient number, since it is larger than the sum of its proper divisors (454834567).

1021333113 is a wasteful number, since it uses less digits than its factorization.

1021333113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69908 (or 69905 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1021333113 is about 31958.3027240184. The cubic root of 1021333113 is about 1007.0610617225.

Adding to 1021333113 its reverse (3113331201), we get a palindrome (4134664314).

The spelling of 1021333113 in words is "one billion, twenty-one million, three hundred thirty-three thousand, one hundred thirteen".