21313114016 has 24 divisors (see below), whose sum is σ = 41964674724. Its totient is φ = 10655418880.

The previous prime is 21313114007. The next prime is 21313114019. The reversal of 21313114016 is 61041131312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15325449616 + 5987664400 = 123796^2 + 77380^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21313113982 and 21313114000.

It is not an unprimeable number, because it can be changed into a prime (21313114019) 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, 324956 + ... + 384996.

Almost surely, 2^21313114016 is an apocalyptic number.

It is an amenable number.

21313114016 is a deficient number, since it is larger than the sum of its proper divisors (20651560708).

21313114016 is a wasteful number, since it uses less digits than its factorization.

21313114016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71144 (or 71136 counting only the distinct ones).

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

Adding to 21313114016 its reverse (61041131312), we get a palindrome (82354245328).

The spelling of 21313114016 in words is "twenty-one billion, three hundred thirteen million, one hundred fourteen thousand, sixteen".