21232753116 has 24 divisors (see below), whose sum is σ = 49562674560. Its totient is φ = 7074786672.

The previous prime is 21232753057. The next prime is 21232753123. The reversal of 21232753116 is 61135723212.

It is a super-3 number, since 3×21232753116³ (a number of 32 digits) contains 333 as substring.

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, 317976 + ... + 378911.

It is an arithmetic number, because the mean of its divisors is an integer number (2065111440).

Almost surely, 2^21232753116 is an apocalyptic number.

It is an amenable number.

21232753116 is an abundant number, since it is smaller than the sum of its proper divisors (28329921444).

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

21232753116 is a wasteful number, since it uses less digits than its factorization.

21232753116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699433 (or 699431 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The spelling of 21232753116 in words is "twenty-one billion, two hundred thirty-two million, seven hundred fifty-three thousand, one hundred sixteen".