2021042403001 has 2 divisors, whose sum is σ = 2021042403002. Its totient is φ = 2021042403000.

The previous prime is 2021042402971. The next prime is 2021042403011. The reversal of 2021042403001 is 1003042401202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2017604339776 + 3438063225 = 1420424^2 + 58635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021042403001 - 2³⁷ = 1883603449529 is a prime.

It is a super-2 number, since 2×2021042403001² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021042403001.

It is not a weakly prime, because it can be changed into another prime (2021042403011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010521201500 + 1010521201501.

It is an arithmetic number, because the mean of its divisors is an integer number (1010521201501).

Almost surely, 2^{2021042403001} is an apocalyptic number.

It is an amenable number.

2021042403001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021042403001 is an equidigital number, since it uses as much as digits as its factorization.

2021042403001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2021042403001 its reverse (1003042401202), we get a palindrome (3024084804203).

The spelling of 2021042403001 in words is "two trillion, twenty-one billion, forty-two million, four hundred three thousand, one".