20030101021 has 8 divisors (see below), whose sum is σ = 23629981184. Its totient is φ = 16614830160.

The previous prime is 20030101019. The next prime is 20030101043. The reversal of 20030101021 is 12010103002.

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 20030101021 - 2¹ = 20030101019 is a prime.

It is a super-2 number, since 2×20030101021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20030100989 and 20030101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030101081) 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 7 ways as a sum of consecutive naturals, for example, 46152090 + ... + 46152523.

It is an arithmetic number, because the mean of its divisors is an integer number (2953747648).

Almost surely, 2^20030101021 is an apocalyptic number.

It is an amenable number.

20030101021 is a deficient number, since it is larger than the sum of its proper divisors (3599880163).

20030101021 is an equidigital number, since it uses as much as digits as its factorization.

20030101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92304651.

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

Adding to 20030101021 its reverse (12010103002), we get a palindrome (32040204023).

The spelling of 20030101021 in words is "twenty billion, thirty million, one hundred one thousand, twenty-one".