21314011013 has 16 divisors (see below), whose sum is σ = 23089708800. Its totient is φ = 19614080640.

The previous prime is 21314011009. The next prime is 21314011031. The reversal of 21314011013 is 31011041312.

It is a cyclic number.

It is not a de Polignac number, because 21314011013 - 2² = 21314011009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21314010982 and 21314011000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314011063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130568 + ... + 244286.

It is an arithmetic number, because the mean of its divisors is an integer number (1443106800).

Almost surely, 2^21314011013 is an apocalyptic number.

21314011013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21314011013 is a deficient number, since it is larger than the sum of its proper divisors (1775697787).

21314011013 is a wasteful number, since it uses less digits than its factorization.

21314011013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114052.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21314011013 its reverse (31011041312), we get a palindrome (52325052325).

The spelling of 21314011013 in words is "twenty-one billion, three hundred fourteen million, eleven thousand, thirteen".