21153203405150 has 24 divisors (see below), whose sum is σ = 39347195606400. Its totient is φ = 8460800228160.

The previous prime is 21153203405041. The next prime is 21153203405221. The reversal of 21153203405150 is 5150430235112.

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 11 ways as a sum of consecutive naturals, for example, 11139599 + ... + 12899498.

It is an arithmetic number, because the mean of its divisors is an integer number (1639466483600).

Almost surely, 2^{21153203405150} is an apocalyptic number.

21153203405150 is a deficient number, since it is larger than the sum of its proper divisors (18193992201250).

21153203405150 is a wasteful number, since it uses less digits than its factorization.

21153203405150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24056708 (or 24056703 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 21153203405150 in words is "twenty-one trillion, one hundred fifty-three billion, two hundred three million, four hundred five thousand, one hundred fifty".