21032102158 has 8 divisors (see below), whose sum is σ = 32636020680. Its totient is φ = 10153428600.

The previous prime is 21032102149. The next prime is 21032102159. The reversal of 21032102158 is 85120123012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032102159) 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 3 ways as a sum of consecutive naturals, for example, 181311168 + ... + 181311283.

It is an arithmetic number, because the mean of its divisors is an integer number (4079502585).

Almost surely, 2^21032102158 is an apocalyptic number.

21032102158 is a deficient number, since it is larger than the sum of its proper divisors (11603918522).

21032102158 is a wasteful number, since it uses less digits than its factorization.

21032102158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362622482.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 21032102158 in words is "twenty-one billion, thirty-two million, one hundred two thousand, one hundred fifty-eight".