21014411131411 has 4 divisors (see below), whose sum is σ = 21020568301872. Its totient is φ = 21008253960952.

The previous prime is 21014411131397. The next prime is 21014411131421. The reversal of 21014411131411 is 11413111441012.

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

It is a cyclic number.

It is not a de Polignac number, because 21014411131411 - 2⁵ = 21014411131379 is a prime.

It is a super-2 number, since 2×21014411131411² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21014411131421) 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, 3078580111 + ... + 3078586936.

It is an arithmetic number, because the mean of its divisors is an integer number (5255142075468).

Almost surely, 2^{21014411131411} is an apocalyptic number.

21014411131411 is a deficient number, since it is larger than the sum of its proper divisors (6157170461).

21014411131411 is an equidigital number, since it uses as much as digits as its factorization.

21014411131411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157170460.

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 21014411131411 its reverse (11413111441012), we get a palindrome (32427522572423).

The spelling of 21014411131411 in words is "twenty-one trillion, fourteen billion, four hundred eleven million, one hundred thirty-one thousand, four hundred eleven".