1021010011 has 24 divisors (see below), whose sum is σ = 1255938000. Its totient is φ = 825297984.

The previous prime is 1021009993. The next prime is 1021010041. The reversal of 1021010011 is 1100101201.

It is not a de Polignac number, because 1021010011 - 2⁷ = 1021009883 is a prime.

It is a super-2 number, since 2×1021010011² = 2084922885124440242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 1021009976 and 1021010003.

It is not an unprimeable number, because it can be changed into a prime (1021010041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210805 + ... + 215593.

It is an arithmetic number, because the mean of its divisors is an integer number (52330750).

Almost surely, 2^1021010011 is an apocalyptic number.

1021010011 is a deficient number, since it is larger than the sum of its proper divisors (234927989).

1021010011 is a wasteful number, since it uses less digits than its factorization.

1021010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051 (or 5044 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1021010011 is about 31953.2472684702. The cubic root of 1021010011 is about 1006.9548548584.

Adding to 1021010011 its reverse (1100101201), we get a palindrome (2121111212).

The spelling of 1021010011 in words is "one billion, twenty-one million, ten thousand, eleven".