21507002524114 has 8 divisors (see below), whose sum is σ = 33010748060400. Its totient is φ = 10503419837316.

The previous prime is 21507002524087. The next prime is 21507002524123. The reversal of 21507002524114 is 41142520070512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21507002524114.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125040712264 + ... + 125040712435.

It is an arithmetic number, because the mean of its divisors is an integer number (4126343507550).

Almost surely, 2^{21507002524114} is an apocalyptic number.

21507002524114 is a deficient number, since it is larger than the sum of its proper divisors (11503745536286).

21507002524114 is a wasteful number, since it uses less digits than its factorization.

21507002524114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250081424744.

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 21507002524114 its reverse (41142520070512), we get a palindrome (62649522594626).

The spelling of 21507002524114 in words is "twenty-one trillion, five hundred seven billion, two million, five hundred twenty-four thousand, one hundred fourteen".