21314501005245 has 16 divisors (see below), whose sum is σ = 38975087552640. Its totient is φ = 9743771888064.

The previous prime is 21314501005223. The next prime is 21314501005261. The reversal of 21314501005245 is 54250010541312.

It is not a de Polignac number, because 21314501005245 - 2⁶ = 21314501005181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101497623730 + ... + 101497623939.

It is an arithmetic number, because the mean of its divisors is an integer number (2435942972040).

Almost surely, 2^{21314501005245} is an apocalyptic number.

It is an amenable number.

21314501005245 is a deficient number, since it is larger than the sum of its proper divisors (17660586547395).

21314501005245 is a wasteful number, since it uses less digits than its factorization.

21314501005245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202995247684.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 21314501005245 its reverse (54250010541312), we get a palindrome (75564511546557).

The spelling of 21314501005245 in words is "twenty-one trillion, three hundred fourteen billion, five hundred one million, five thousand, two hundred forty-five".