21040304151432 has 128 divisors (see below), whose sum is σ = 53437294080000. Its totient is φ = 6902262958080.

The previous prime is 21040304151421. The next prime is 21040304151439. The reversal of 21040304151432 is 23415140304012.

It is a self number, because there is not a number n which added to its sum of digits gives 21040304151432.

It is not an unprimeable number, because it can be changed into a prime (21040304151439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2689540273 + ... + 2689548095.

It is an arithmetic number, because the mean of its divisors is an integer number (417478860000).

Almost surely, 2^{21040304151432} is an apocalyptic number.

It is an amenable number.

21040304151432 is an abundant number, since it is smaller than the sum of its proper divisors (32396989928568).

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

21040304151432 is a wasteful number, since it uses less digits than its factorization.

21040304151432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10531 (or 10527 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 21040304151432 its reverse (23415140304012), we get a palindrome (44455444455444).

The spelling of 21040304151432 in words is "twenty-one trillion, forty billion, three hundred four million, one hundred fifty-one thousand, four hundred thirty-two".