21314500145145 has 96 divisors (see below), whose sum is σ = 40952147588352. Its totient is φ = 10200529760256.

The previous prime is 21314500145137. The next prime is 21314500145161. The reversal of 21314500145145 is 54154100541312.

21314500145145 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 4 + 500 + 1 + 4 + 5 + 145 = 666.

It is not a de Polignac number, because 21314500145145 - 2³ = 21314500145137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3428709 + ... + 7374621.

It is an arithmetic number, because the mean of its divisors is an integer number (426584870712).

Almost surely, 2^{21314500145145} is an apocalyptic number.

It is an amenable number.

21314500145145 is a deficient number, since it is larger than the sum of its proper divisors (19637647443207).

21314500145145 is a wasteful number, since it uses less digits than its factorization.

21314500145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946271 (or 3946268 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 21314500145145 its reverse (54154100541312), we get a palindrome (75468600686457).

The spelling of 21314500145145 in words is "twenty-one trillion, three hundred fourteen billion, five hundred million, one hundred forty-five thousand, one hundred forty-five".