21113354214 has 40 divisors (see below), whose sum is σ = 47324803680. Its totient is φ = 7035516144.

The previous prime is 21113354209. The next prime is 21113354243. The reversal of 21113354214 is 41245331112.

21113354214 is a `hidden beast` number, since 2 + 1 + 113 + 3 + 542 + 1 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 527107 + ... + 565745.

It is an arithmetic number, because the mean of its divisors is an integer number (1183120092).

Almost surely, 2^21113354214 is an apocalyptic number.

21113354214 is an abundant number, since it is smaller than the sum of its proper divisors (26211449466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21113354214 is a wasteful number, since it uses less digits than its factorization.

21113354214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42026 (or 42017 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 21113354214 its reverse (41245331112), we get a palindrome (62358685326).

The spelling of 21113354214 in words is "twenty-one billion, one hundred thirteen million, three hundred fifty-four thousand, two hundred fourteen".