21114323013 has 32 divisors (see below), whose sum is σ = 32337398016. Its totient is φ = 12004282368.

The previous prime is 21114322993. The next prime is 21114323039. The reversal of 21114323013 is 31032341112.

It is not a de Polignac number, because 21114323013 - 2¹⁰ = 21114321989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114323063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3895081 + ... + 3900497.

It is an arithmetic number, because the mean of its divisors is an integer number (1010543688).

Almost surely, 2^21114323013 is an apocalyptic number.

It is an amenable number.

21114323013 is a deficient number, since it is larger than the sum of its proper divisors (11223075003).

21114323013 is a wasteful number, since it uses less digits than its factorization.

21114323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6333.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21114323013 its reverse (31032341112), we get a palindrome (52146664125).

The spelling of 21114323013 in words is "twenty-one billion, one hundred fourteen million, three hundred twenty-three thousand, thirteen".