10013430421 has 6 divisors (see below), whose sum is σ = 10087073570. Its totient is φ = 9940321056.

The previous prime is 10013430409. The next prime is 10013430431. The reversal of 10013430421 is 12403431001.

It can be written as a sum of positive squares in 3 ways, for example, as 1047234321 + 8966196100 = 32361^2 + 94690^2 .

It is not a de Polignac number, because 10013430421 - 2¹⁷ = 10013299349 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 (10013430431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247986 + ... + 285523.

Almost surely, 2^10013430421 is an apocalyptic number.

It is an amenable number.

10013430421 is a deficient number, since it is larger than the sum of its proper divisors (73643149).

10013430421 is an frugal number, since it uses more digits than its factorization.

10013430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533783 (or 533646 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10013430421 its reverse (12403431001), we get a palindrome (22416861422).

The spelling of 10013430421 in words is "ten billion, thirteen million, four hundred thirty thousand, four hundred twenty-one".