10142442441421 has 8 divisors (see below), whose sum is σ = 10182500939160. Its totient is φ = 10102408715328.

The previous prime is 10142442441409. The next prime is 10142442441559. The reversal of 10142442441421 is 12414424424101.

It can be written as a sum of positive squares in 4 ways, for example, as 375786164196 + 9766656277225 = 613014^2 + 3125165^2 .

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 10142442441421 - 2⁹ = 10142442440909 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 (10142442441821) 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, 5372206 + ... + 7010383.

It is an arithmetic number, because the mean of its divisors is an integer number (1272812617395).

Almost surely, 2^{10142442441421} is an apocalyptic number.

It is an amenable number.

10142442441421 is a deficient number, since it is larger than the sum of its proper divisors (40058497739).

10142442441421 is a wasteful number, since it uses less digits than its factorization.

10142442441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12385823.

The product of its (nonzero) digits is 32768, while the sum is 34.

Adding to 10142442441421 its reverse (12414424424101), we get a palindrome (22556866865522).

The spelling of 10142442441421 in words is "ten trillion, one hundred forty-two billion, four hundred forty-two million, four hundred forty-one thousand, four hundred twenty-one".