30318819129 has 21 divisors (see below), whose sum is σ = 45464483743. Its totient is φ = 20209411872.

The previous prime is 30318819127. The next prime is 30318819149. The reversal of 30318819129 is 92191881303.

The square root of 30318819129 is 174123.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 29404361529 + 914457600 = 171477^2 + 30240^2 .

It is not a de Polignac number, because 30318819129 - 2¹ = 30318819127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30318819127) 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 20 ways as a sum of consecutive naturals, for example, 4698097 + ... + 4704545.

Almost surely, 2^30318819129 is an apocalyptic number.

30318819129 is the 174123-rd square number.

30318819129 is the 87062-nd centered octagonal number.

It is an amenable number.

30318819129 is a deficient number, since it is larger than the sum of its proper divisors (15145664614).

30318819129 is an frugal number, since it uses more digits than its factorization.

30318819129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12916 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 30318819129 in words is "thirty billion, three hundred eighteen million, eight hundred nineteen thousand, one hundred twenty-nine".