21433124104 has 48 divisors (see below), whose sum is σ = 47630357100. Its totient is φ = 9012302208.

The previous prime is 21433124071. The next prime is 21433124129. The reversal of 21433124104 is 40142133412.

It can be written as a sum of positive squares in 2 ways, for example, as 19776796900 + 1656327204 = 140630^2 + 40698^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495039 + ... + 536590.

Almost surely, 2^21433124104 is an apocalyptic number.

It is an amenable number.

21433124104 is an abundant number, since it is smaller than the sum of its proper divisors (26197232996).

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

21433124104 is a wasteful number, since it uses less digits than its factorization.

21433124104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031702 (or 1031691 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21433124104 its reverse (40142133412), we get a palindrome (61575257516).

The spelling of 21433124104 in words is "twenty-one billion, four hundred thirty-three million, one hundred twenty-four thousand, one hundred four".