30343578123 has 18 divisors (see below), whose sum is σ = 40773920124. Its totient is φ = 20072362464.

The previous prime is 30343578119. The next prime is 30343578197. The reversal of 30343578123 is 32187534303.

It is not a de Polignac number, because 30343578123 - 2² = 30343578119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30343578623) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49178911 + ... + 49179527.

Almost surely, 2^30343578123 is an apocalyptic number.

30343578123 is a deficient number, since it is larger than the sum of its proper divisors (10430342001).

30343578123 is an frugal number, since it uses more digits than its factorization.

30343578123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 30343578123 in words is "thirty billion, three hundred forty-three million, five hundred seventy-eight thousand, one hundred twenty-three".