21324310292 has 12 divisors (see below), whose sum is σ = 37950044160. Its totient is φ = 10481440536.

The previous prime is 21324310291. The next prime is 21324310297. The reversal of 21324310292 is 29201342312.

It is a happy number.

It is a super-3 number, since 3×21324310292³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21324310291) 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, 45178388 + ... + 45178859.

It is an arithmetic number, because the mean of its divisors is an integer number (3162503680).

Almost surely, 2^21324310292 is an apocalyptic number.

It is an amenable number.

21324310292 is a deficient number, since it is larger than the sum of its proper divisors (16625733868).

21324310292 is a wasteful number, since it uses less digits than its factorization.

21324310292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90357310 (or 90357308 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 21324310292 in words is "twenty-one billion, three hundred twenty-four million, three hundred ten thousand, two hundred ninety-two".