21131112014 has 8 divisors (see below), whose sum is σ = 31706493960. Its totient is φ = 10562280696.

The previous prime is 21131111959. The next prime is 21131112109. The reversal of 21131112014 is 41021113112.

21131112014 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 21131111983 and 21131112001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629584 + ... + 1642499.

It is an arithmetic number, because the mean of its divisors is an integer number (3963311745).

Almost surely, 2^21131112014 is an apocalyptic number.

21131112014 is a deficient number, since it is larger than the sum of its proper divisors (10575381946).

21131112014 is a wasteful number, since it uses less digits than its factorization.

21131112014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275314.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21131112014 its reverse (41021113112), we get a palindrome (62152225126).

The spelling of 21131112014 in words is "twenty-one billion, one hundred thirty-one million, one hundred twelve thousand, fourteen".