1000060021 has 8 divisors (see below), whose sum is σ = 1020912984. Its totient is φ = 979280640.

The previous prime is 1000060001. The next prime is 1000060043. The reversal of 1000060021 is 1200600001.

It can be written as a sum of positive squares in 4 ways, for example, as 31979025 + 968080996 = 5655^2 + 31114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000060021 - 2⁵ = 1000059989 is a prime.

It is a super-3 number, since 3×1000060021³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000060001) 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 7 ways as a sum of consecutive naturals, for example, 9505 + ... + 45721.

It is an arithmetic number, because the mean of its divisors is an integer number (127614123).

Almost surely, 2^1000060021 is an apocalyptic number.

It is an amenable number.

1000060021 is a deficient number, since it is larger than the sum of its proper divisors (20852963).

1000060021 is an equidigital number, since it uses as much as digits as its factorization.

1000060021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36791.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1000060021 is about 31623.7256027812. The cubic root of 1000060021 is about 1000.0200065997.

Adding to 1000060021 its reverse (1200600001), we get a palindrome (2200660022).

The spelling of 1000060021 in words is "one billion, sixty thousand, twenty-one".