21433004010 has 48 divisors (see below), whose sum is σ = 60791796000. Its totient is φ = 5195879520.

The previous prime is 21433003961. The next prime is 21433004011. The reversal of 21433004010 is 1040033412.

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

It is not an unprimeable number, because it can be changed into a prime (21433004011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10823760 + ... + 10825739.

It is an arithmetic number, because the mean of its divisors is an integer number (1266495750).

Almost surely, 2^21433004010 is an apocalyptic number.

21433004010 is an abundant number, since it is smaller than the sum of its proper divisors (39358791990).

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

21433004010 is a wasteful number, since it uses less digits than its factorization.

21433004010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21649523 (or 21649520 counting only the distinct ones).

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

Adding to 21433004010 its reverse (1040033412), we get a palindrome (22473037422).

The spelling of 21433004010 in words is "twenty-one billion, four hundred thirty-three million, four thousand, ten".