21403743306035 has 16 divisors (see below), whose sum is σ = 26811139449600. Its totient is φ = 16372448014560.

The previous prime is 21403743305993. The next prime is 21403743306041. The reversal of 21403743306035 is 53060334730412.

It is not a de Polignac number, because 21403743306035 - 2²⁸ = 21403474870579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21403743305983 and 21403743306001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34168961 + ... + 34789730.

It is an arithmetic number, because the mean of its divisors is an integer number (1675696215600).

Almost surely, 2^{21403743306035} is an apocalyptic number.

21403743306035 is a deficient number, since it is larger than the sum of its proper divisors (5407396143565).

21403743306035 is a wasteful number, since it uses less digits than its factorization.

21403743306035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68961418.

The product of its (nonzero) digits is 544320, while the sum is 41.

The spelling of 21403743306035 in words is "twenty-one trillion, four hundred three billion, seven hundred forty-three million, three hundred six thousand, thirty-five".