21403214335 has 16 divisors (see below), whose sum is σ = 27040543200. Its totient is φ = 16218441216.

The previous prime is 21403214311. The next prime is 21403214347. The reversal of 21403214335 is 53341230412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21403214335 - 2⁵ = 21403214303 is a prime.

It is a congruent number.

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, 606907 + ... + 641203.

It is an arithmetic number, because the mean of its divisors is an integer number (1690033950).

Almost surely, 2^21403214335 is an apocalyptic number.

21403214335 is a deficient number, since it is larger than the sum of its proper divisors (5637328865).

21403214335 is a wasteful number, since it uses less digits than its factorization.

21403214335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40890.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 21403214335 its reverse (53341230412), we get a palindrome (74744444747).

The spelling of 21403214335 in words is "twenty-one billion, four hundred three million, two hundred fourteen thousand, three hundred thirty-five".