21014044311 has 8 divisors (see below), whose sum is σ = 30174012400. Its totient is φ = 12931719552.

The previous prime is 21014044309. The next prime is 21014044321. The reversal of 21014044311 is 11344041012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21014044311 - 2¹ = 21014044309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21014044321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269410786 + ... + 269410863.

It is an arithmetic number, because the mean of its divisors is an integer number (3771751550).

Almost surely, 2^21014044311 is an apocalyptic number.

21014044311 is a deficient number, since it is larger than the sum of its proper divisors (9159968089).

21014044311 is a wasteful number, since it uses less digits than its factorization.

21014044311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538821665.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21014044311 its reverse (11344041012), we get a palindrome (32358085323).

The spelling of 21014044311 in words is "twenty-one billion, fourteen million, forty-four thousand, three hundred eleven".