30321440853 has 16 divisors (see below), whose sum is σ = 44662195200. Its totient is φ = 18144013680.

The previous prime is 30321440813. The next prime is 30321440857. The reversal of 30321440853 is 35804412303.

It is not a de Polignac number, because 30321440853 - 2¹⁶ = 30321375317 is a prime.

It is a super-4 number, since 4×30321440853⁴ (a number of 43 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321440857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5812783 + ... + 5817996.

It is an arithmetic number, because the mean of its divisors is an integer number (2791387200).

Almost surely, 2^30321440853 is an apocalyptic number.

30321440853 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30321440853 is a deficient number, since it is larger than the sum of its proper divisors (14340754347).

30321440853 is a wasteful number, since it uses less digits than its factorization.

30321440853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630872.

The product of its (nonzero) digits is 34560, while the sum is 33.

It can be divided in two parts, 30321 and 440853, that added together give a palindrome (471174).

The spelling of 30321440853 in words is "thirty billion, three hundred twenty-one million, four hundred forty thousand, eight hundred fifty-three".