30321040431 has 24 divisors (see below), whose sum is σ = 44761882032. Its totient is φ = 18242224000.

The previous prime is 30321040417. The next prime is 30321040441. The reversal of 30321040431 is 13404012303.

It is not a de Polignac number, because 30321040431 - 2⁷ = 30321040303 is a prime.

It is a super-2 number, since 2×30321040431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30321040398 and 30321040407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30321040441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255120 + ... + 354581.

It is an arithmetic number, because the mean of its divisors is an integer number (1865078418).

Almost surely, 2^30321040431 is an apocalyptic number.

30321040431 is a deficient number, since it is larger than the sum of its proper divisors (14440841601).

30321040431 is a wasteful number, since it uses less digits than its factorization.

30321040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609863 (or 609852 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30321040431 its reverse (13404012303), we get a palindrome (43725052734).

The spelling of 30321040431 in words is "thirty billion, three hundred twenty-one million, forty thousand, four hundred thirty-one".