21850113141 has 12 divisors (see below), whose sum is σ = 33417820332. Its totient is φ = 13709874816.

The previous prime is 21850113139. The next prime is 21850113143. The reversal of 21850113141 is 14131105812.

21850113141 is a `hidden beast` number, since 2 + 1 + 8 + 501 + 13 + 141 = 666.

It is an interprime number because it is at equal distance from previous prime (21850113139) and next prime (21850113143).

It can be written as a sum of positive squares in 2 ways, for example, as 10415018916 + 11435094225 = 102054^2 + 106935^2 .

It is not a de Polignac number, because 21850113141 - 2¹ = 21850113139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21850113143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71405446 + ... + 71405751.

It is an arithmetic number, because the mean of its divisors is an integer number (2784818361).

Almost surely, 2^21850113141 is an apocalyptic number.

It is an amenable number.

21850113141 is a deficient number, since it is larger than the sum of its proper divisors (11567707191).

21850113141 is a wasteful number, since it uses less digits than its factorization.

21850113141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142811220 (or 142811217 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

Adding to 21850113141 its reverse (14131105812), we get a palindrome (35981218953).

The spelling of 21850113141 in words is "twenty-one billion, eight hundred fifty million, one hundred thirteen thousand, one hundred forty-one".