21142102301441 has 4 divisors (see below), whose sum is σ = 23064111601584. Its totient is φ = 19220093001300.

The previous prime is 21142102301371. The next prime is 21142102301483. The reversal of 21142102301441 is 14410320124112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21142102301441 - 2¹⁸ = 21142102039297 is a prime.

It is a super-3 number, since 3×21142102301441³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21142102301441.

It is not an unprimeable number, because it can be changed into a prime (21142101301441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961004650055 + ... + 961004650076.

It is an arithmetic number, because the mean of its divisors is an integer number (5766027900396).

Almost surely, 2^{21142102301441} is an apocalyptic number.

It is an amenable number.

21142102301441 is a deficient number, since it is larger than the sum of its proper divisors (1922009300143).

21142102301441 is a wasteful number, since it uses less digits than its factorization.

21142102301441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922009300142.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 21142102301441 its reverse (14410320124112), we get a palindrome (35552422425553).

The spelling of 21142102301441 in words is "twenty-one trillion, one hundred forty-two billion, one hundred two million, three hundred one thousand, four hundred forty-one".