21433120002 has 48 divisors (see below), whose sum is σ = 53087711040. Its totient is φ = 6121992096.

The previous prime is 21433119949. The next prime is 21433120013. The reversal of 21433120002 is 20002133412.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 453648 + ... + 498660.

It is an arithmetic number, because the mean of its divisors is an integer number (1105993980).

Almost surely, 2^21433120002 is an apocalyptic number.

21433120002 is an abundant number, since it is smaller than the sum of its proper divisors (31654591038).

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

21433120002 is a wasteful number, since it uses less digits than its factorization.

21433120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48807 (or 48804 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21433120002 its reverse (20002133412), we get a palindrome (41435253414).

The spelling of 21433120002 in words is "twenty-one billion, four hundred thirty-three million, one hundred twenty thousand, two".