1020230420021 has 8 divisors (see below), whose sum is σ = 1045353264984. Its totient is φ = 995118964480.

The previous prime is 1020230419933. The next prime is 1020230420029. The reversal of 1020230420021 is 1200240320201.

It can be written as a sum of positive squares in 4 ways, for example, as 9630478225 + 1010599941796 = 98135^2 + 1005286^2 .

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 1020230420021 - 2¹⁴ = 1020230403637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020230420029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2665856 + ... + 3024441.

It is an arithmetic number, because the mean of its divisors is an integer number (130669158123).

Almost surely, 2^{1020230420021} is an apocalyptic number.

It is an amenable number.

1020230420021 is a deficient number, since it is larger than the sum of its proper divisors (25122844963).

1020230420021 is an equidigital number, since it uses as much as digits as its factorization.

1020230420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694711.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1020230420021 its reverse (1200240320201), we get a palindrome (2220470740222).

The spelling of 1020230420021 in words is "one trillion, twenty billion, two hundred thirty million, four hundred twenty thousand, twenty-one".