10342440420421 has 8 divisors (see below), whose sum is σ = 10792147731840. Its totient is φ = 9892736108112.

The previous prime is 10342440420419. The next prime is 10342440420469. The reversal of 10342440420421 is 12402404424301.

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 not a de Polignac number, because 10342440420421 - 2¹ = 10342440420419 is a prime.

It is a super-2 number, since 2×10342440420421² (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 (10342440420401) 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, 8988376 + ... + 10073518.

It is an arithmetic number, because the mean of its divisors is an integer number (1349018466480).

Almost surely, 2^{10342440420421} is an apocalyptic number.

It is an amenable number.

10342440420421 is a deficient number, since it is larger than the sum of its proper divisors (449707311419).

10342440420421 is a wasteful number, since it uses less digits than its factorization.

10342440420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499555.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 10342440420421 its reverse (12402404424301), we get a palindrome (22744844844722).

The spelling of 10342440420421 in words is "ten trillion, three hundred forty-two billion, four hundred forty million, four hundred twenty thousand, four hundred twenty-one".