30441431421 has 20 divisors (see below), whose sum is σ = 45530545500. Its totient is φ = 20269158336.

The previous prime is 30441431401. The next prime is 30441431437. The reversal of 30441431421 is 12413414403.

30441431421 is a `hidden beast` number, since 304 + 41 + 4 + 314 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19324892196 + 11116539225 = 139014^2 + 105435^2 .

It is not a de Polignac number, because 30441431421 - 2⁵ = 30441431389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30441431401) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 166746 + ... + 297803.

It is an arithmetic number, because the mean of its divisors is an integer number (2276527275).

Almost surely, 2^30441431421 is an apocalyptic number.

It is an amenable number.

30441431421 is a deficient number, since it is larger than the sum of its proper divisors (15089114079).

30441431421 is an equidigital number, since it uses as much as digits as its factorization.

30441431421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465370 (or 465361 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 30441431421 its reverse (12413414403), we get a palindrome (42854845824).

The spelling of 30441431421 in words is "thirty billion, four hundred forty-one million, four hundred thirty-one thousand, four hundred twenty-one".