21514010401441 has 4 divisors (see below), whose sum is σ = 21524192140612. Its totient is φ = 21503828662272.

The previous prime is 21514010401439. The next prime is 21514010401447. The reversal of 21514010401441 is 14410401041512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5777754460416 + 15736255941025 = 2403696^2 + 3966895^2 .

It is a cyclic number.

It is not a de Polignac number, because 21514010401441 - 2¹ = 21514010401439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21514010401447) 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, 5090866416 + ... + 5090870641.

It is an arithmetic number, because the mean of its divisors is an integer number (5381048035153).

Almost surely, 2^{21514010401441} is an apocalyptic number.

It is an amenable number.

21514010401441 is a deficient number, since it is larger than the sum of its proper divisors (10181739171).

21514010401441 is a wasteful number, since it uses less digits than its factorization.

21514010401441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181739170.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 21514010401441 its reverse (14410401041512), we get a palindrome (35924411442953).

The spelling of 21514010401441 in words is "twenty-one trillion, five hundred fourteen billion, ten million, four hundred one thousand, four hundred forty-one".