21150140230 has 16 divisors (see below), whose sum is σ = 38076077664. Its totient is φ = 8458761600.

The previous prime is 21150140177. The next prime is 21150140287. The reversal of 21150140230 is 3204105112.

It is a junction number, because it is equal to n+sod(n) for n = 21150140198 and 21150140207.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 91746 + ... + 225205.

It is an arithmetic number, because the mean of its divisors is an integer number (2379754854).

Almost surely, 2^21150140230 is an apocalyptic number.

21150140230 is a deficient number, since it is larger than the sum of its proper divisors (16925937434).

21150140230 is a wasteful number, since it uses less digits than its factorization.

21150140230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323631.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 21150140230 its reverse (3204105112), we get a palindrome (24354245342).

The spelling of 21150140230 in words is "twenty-one billion, one hundred fifty million, one hundred forty thousand, two hundred thirty".