21403030412 has 48 divisors (see below), whose sum is σ = 38651733120. Its totient is φ = 10363852800.

The previous prime is 21403030387. The next prime is 21403030427.

21403030412 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14976914 + ... + 14978342.

It is an arithmetic number, because the mean of its divisors is an integer number (805244440).

Almost surely, 2^21403030412 is an apocalyptic number.

It is an amenable number.

21403030412 is a deficient number, since it is larger than the sum of its proper divisors (17248702708).

21403030412 is a wasteful number, since it uses less digits than its factorization.

21403030412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 214030 and 30412, that added together give a palindrome (244442).

The spelling of 21403030412 in words is "twenty-one billion, four hundred three million, thirty thousand, four hundred twelve".