21303032244429 has 32 divisors (see below), whose sum is σ = 32214170419200. Its totient is φ = 12413697370560.

The previous prime is 21303032244401. The next prime is 21303032244551. The reversal of 21303032244429 is 92444223030312.

It is not a de Polignac number, because 21303032244429 - 2¹⁶ = 21303032178893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303032244929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5245089 + ... + 8373590.

It is an arithmetic number, because the mean of its divisors is an integer number (1006692825600).

Almost surely, 2^{21303032244429} is an apocalyptic number.

It is an amenable number.

21303032244429 is a deficient number, since it is larger than the sum of its proper divisors (10911138174771).

21303032244429 is a wasteful number, since it uses less digits than its factorization.

21303032244429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13620825.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 21303032244429 in words is "twenty-one trillion, three hundred three billion, thirty-two million, two hundred forty-four thousand, four hundred twenty-nine".