30345123452 has 24 divisors (see below), whose sum is σ = 61247044320. Its totient is φ = 12885739200.

The previous prime is 30345123409. The next prime is 30345123491. The reversal of 30345123452 is 25432154303.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4968299 + ... + 4974402.

It is an arithmetic number, because the mean of its divisors is an integer number (2551960180).

Almost surely, 2^30345123452 is an apocalyptic number.

It is an amenable number.

30345123452 is an abundant number, since it is smaller than the sum of its proper divisors (30901920868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30345123452 is a wasteful number, since it uses less digits than its factorization.

30345123452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942821 (or 9942819 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 30345123452 its reverse (25432154303), we get a palindrome (55777277755).

The spelling of 30345123452 in words is "thirty billion, three hundred forty-five million, one hundred twenty-three thousand, four hundred fifty-two".