21032152052120 has 32 divisors (see below), whose sum is σ = 51624373219920. Its totient is φ = 7648055291520.

The previous prime is 21032152052101. The next prime is 21032152052209. The reversal of 21032152052120 is 2125025123012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21032152052120.

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 7 ways as a sum of consecutive naturals, for example, 23900172347 + ... + 23900173226.

Almost surely, 2^{21032152052120} is an apocalyptic number.

21032152052120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21032152052120 is an abundant number, since it is smaller than the sum of its proper divisors (30592221167800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21032152052120 is a wasteful number, since it uses less digits than its factorization.

21032152052120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47800345595 (or 47800345591 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 21032152052120 its reverse (2125025123012), we get a palindrome (23157177175132).

The spelling of 21032152052120 in words is "twenty-one trillion, thirty-two billion, one hundred fifty-two million, fifty-two thousand, one hundred twenty".