10020030421 has 4 divisors (see below), whose sum is σ = 10290842092. Its totient is φ = 9749218752.

The previous prime is 10020030389. The next prime is 10020030473. The reversal of 10020030421 is 12403002001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9313215025 + 706815396 = 96505^2 + 26586^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020030421 - 2⁵ = 10020030389 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 (10020030481) 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 3 ways as a sum of consecutive naturals, for example, 135405780 + ... + 135405853.

It is an arithmetic number, because the mean of its divisors is an integer number (2572710523).

Almost surely, 2^10020030421 is an apocalyptic number.

It is an amenable number.

10020030421 is a deficient number, since it is larger than the sum of its proper divisors (270811671).

10020030421 is an equidigital number, since it uses as much as digits as its factorization.

10020030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270811670.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 10020030421 its reverse (12403002001), we get a palindrome (22423032422).

The spelling of 10020030421 in words is "ten billion, twenty million, thirty thousand, four hundred twenty-one".