21014114635 has 4 divisors (see below), whose sum is σ = 25216937568. Its totient is φ = 16811291704.

The previous prime is 21014114617. The next prime is 21014114689. The reversal of 21014114635 is 53641141012.

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 21014114635 - 2¹⁷ = 21013983563 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101411459 + ... + 2101411468.

It is an arithmetic number, because the mean of its divisors is an integer number (6304234392).

Almost surely, 2^21014114635 is an apocalyptic number.

21014114635 is a deficient number, since it is larger than the sum of its proper divisors (4202822933).

21014114635 is an equidigital number, since it uses as much as digits as its factorization.

21014114635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202822932.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 21014114635 its reverse (53641141012), we get a palindrome (74655255647).

The spelling of 21014114635 in words is "twenty-one billion, fourteen million, one hundred fourteen thousand, six hundred thirty-five".