21040101430 has 32 divisors (see below), whose sum is σ = 39202108416. Its totient is φ = 8124084864.

The previous prime is 21040101427. The next prime is 21040101449. The reversal of 21040101430 is 3410104012.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 176889 + ... + 270868.

It is an arithmetic number, because the mean of its divisors is an integer number (1225065888).

Almost surely, 2^21040101430 is an apocalyptic number.

21040101430 is a deficient number, since it is larger than the sum of its proper divisors (18162006986).

21040101430 is a wasteful number, since it uses less digits than its factorization.

21040101430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447928.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21040101430 its reverse (3410104012), we get a palindrome (24450205442).

The spelling of 21040101430 in words is "twenty-one billion, forty million, one hundred one thousand, four hundred thirty".