30420444431 has 8 divisors (see below), whose sum is σ = 32761861440. Its totient is φ = 28079224992.

The previous prime is 30420444403. The next prime is 30420444451. The reversal of 30420444431 is 13444402403.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30420444431 - 2³⁴ = 13240575247 is a prime.

It is a super-2 number, since 2×30420444431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30420444394 and 30420444403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420444451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483041 + ... + 542373.

It is an arithmetic number, because the mean of its divisors is an integer number (4095232680).

Almost surely, 2^30420444431 is an apocalyptic number.

30420444431 is a deficient number, since it is larger than the sum of its proper divisors (2341417009).

30420444431 is a wasteful number, since it uses less digits than its factorization.

30420444431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98785.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 30420444431 its reverse (13444402403), we get a palindrome (43864846834).

The spelling of 30420444431 in words is "thirty billion, four hundred twenty million, four hundred forty-four thousand, four hundred thirty-one".