10421240035421 has 8 divisors (see below), whose sum is σ = 10475491915200. Its totient is φ = 10367006994432.

The previous prime is 10421240035397. The next prime is 10421240035477. The reversal of 10421240035421 is 12453004212401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10421240035421 is a prime.

It is a super-2 number, since 2×10421240035421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421240032421) 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, 3599780 + ... + 5813853.

It is an arithmetic number, because the mean of its divisors is an integer number (1309436489400).

Almost surely, 2^{10421240035421} is an apocalyptic number.

It is an amenable number.

10421240035421 is a deficient number, since it is larger than the sum of its proper divisors (54251879779).

10421240035421 is an equidigital number, since it uses as much as digits as its factorization.

10421240035421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419395.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 10421240035421 its reverse (12453004212401), we get a palindrome (22874244247822).

The spelling of 10421240035421 in words is "ten trillion, four hundred twenty-one billion, two hundred forty million, thirty-five thousand, four hundred twenty-one".