21363175312 has 40 divisors (see below), whose sum is σ = 43605021600. Its totient is φ = 10111180032.

The previous prime is 21363175279. The next prime is 21363175313. The reversal of 21363175312 is 21357136312.

It is a super-2 number, since 2×21363175312² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21363175313) 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 7 ways as a sum of consecutive naturals, for example, 354828 + ... + 410644.

It is an arithmetic number, because the mean of its divisors is an integer number (1090125540).

Almost surely, 2^21363175312 is an apocalyptic number.

It is an amenable number.

21363175312 is an abundant number, since it is smaller than the sum of its proper divisors (22241846288).

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

21363175312 is a wasteful number, since it uses less digits than its factorization.

21363175312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57103 (or 57097 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The spelling of 21363175312 in words is "twenty-one billion, three hundred sixty-three million, one hundred seventy-five thousand, three hundred twelve".