21250603300142 has 8 divisors (see below), whose sum is σ = 31949521360176. Its totient is φ = 10600762846752.

The previous prime is 21250603300117. The next prime is 21250603300249. The reversal of 21250603300142 is 24100330605212.

It is a happy number.

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

It is a super-2 number, since 2×21250603300142² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12269400578 + ... + 12269402309.

It is an arithmetic number, because the mean of its divisors is an integer number (3993690170022).

Almost surely, 2^{21250603300142} is an apocalyptic number.

21250603300142 is a deficient number, since it is larger than the sum of its proper divisors (10698918060034).

21250603300142 is a wasteful number, since it uses less digits than its factorization.

21250603300142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24538803322.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 21250603300142 its reverse (24100330605212), we get a palindrome (45350933905354).

The spelling of 21250603300142 in words is "twenty-one trillion, two hundred fifty billion, six hundred three million, three hundred thousand, one hundred forty-two".