21503346114 has 16 divisors (see below), whose sum is σ = 43008257952. Its totient is φ = 7167521088.

The previous prime is 21503346113. The next prime is 21503346127. The reversal of 21503346114 is 41164330512.

It is not an unprimeable number, because it can be changed into a prime (21503346113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190297 + ... + 281459.

It is an arithmetic number, because the mean of its divisors is an integer number (2688016122).

Almost surely, 2^21503346114 is an apocalyptic number.

21503346114 is an abundant number, since it is smaller than the sum of its proper divisors (21504911838).

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

21503346114 is a wasteful number, since it uses less digits than its factorization.

21503346114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130481.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 21503346114 its reverse (41164330512), we get a palindrome (62667676626).

The spelling of 21503346114 in words is "twenty-one billion, five hundred three million, three hundred forty-six thousand, one hundred fourteen".