21401416113 has 32 divisors (see below), whose sum is σ = 36333342720. Its totient is φ = 10881068160.

The previous prime is 21401416081. The next prime is 21401416133. The reversal of 21401416113 is 31161410412.

It is a happy number.

It is not a de Polignac number, because 21401416113 - 2⁵ = 21401416081 is a prime.

It is a super-2 number, since 2×21401416113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21401416133) 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, 974748 + ... + 996461.

It is an arithmetic number, because the mean of its divisors is an integer number (1135416960).

Almost surely, 2^21401416113 is an apocalyptic number.

It is an amenable number.

21401416113 is a deficient number, since it is larger than the sum of its proper divisors (14931926607).

21401416113 is a wasteful number, since it uses less digits than its factorization.

21401416113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971277.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 21401416113 its reverse (31161410412), we get a palindrome (52562826525).

The spelling of 21401416113 in words is "twenty-one billion, four hundred one million, four hundred sixteen thousand, one hundred thirteen".