10421240203 has 8 divisors (see below), whose sum is σ = 11369672496. Its totient is φ = 9472982400.

The previous prime is 10421240129. The next prime is 10421240287. The reversal of 10421240203 is 30204212401.

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 10421240203 - 2¹⁷ = 10421109131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10421240293) 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, 102583 + ... + 177103.

It is an arithmetic number, because the mean of its divisors is an integer number (1421209062).

Almost surely, 2^10421240203 is an apocalyptic number.

10421240203 is a deficient number, since it is larger than the sum of its proper divisors (948432293).

10421240203 is a wasteful number, since it uses less digits than its factorization.

10421240203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87245.

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

Adding to 10421240203 its reverse (30204212401), we get a palindrome (40625452604).

The spelling of 10421240203 in words is "ten billion, four hundred twenty-one million, two hundred forty thousand, two hundred three".