21433003293 has 24 divisors (see below), whose sum is σ = 31800435744. Its totient is φ = 12764049120.

The previous prime is 21433003289. The next prime is 21433003297. The reversal of 21433003293 is 39230033412.

It is an interprime number because it is at equal distance from previous prime (21433003289) and next prime (21433003297).

It is not a de Polignac number, because 21433003293 - 2² = 21433003289 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21433003293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433003297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248455 + ... + 323412.

It is an arithmetic number, because the mean of its divisors is an integer number (1325018156).

Almost surely, 2^21433003293 is an apocalyptic number.

It is an amenable number.

21433003293 is a deficient number, since it is larger than the sum of its proper divisors (10367432451).

21433003293 is a wasteful number, since it uses less digits than its factorization.

21433003293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571945 (or 571914 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

The spelling of 21433003293 in words is "twenty-one billion, four hundred thirty-three million, three thousand, two hundred ninety-three".