21334210011113 has 4 divisors (see below), whose sum is σ = 21336064687488. Its totient is φ = 21332355334740.

The previous prime is 21334210011097. The next prime is 21334210011151. The reversal of 21334210011113 is 31111001243312.

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 21334210011113 - 2⁴ = 21334210011097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21334210011013) 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, 927320933 + ... + 927343938.

It is an arithmetic number, because the mean of its divisors is an integer number (5334016171872).

Almost surely, 2^{21334210011113} is an apocalyptic number.

It is an amenable number.

21334210011113 is a deficient number, since it is larger than the sum of its proper divisors (1854676375).

21334210011113 is a wasteful number, since it uses less digits than its factorization.

21334210011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854676374.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21334210011113 its reverse (31111001243312), we get a palindrome (52445211254425).

The spelling of 21334210011113 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, eleven thousand, one hundred thirteen".