30719300000 has 144 divisors (see below), whose sum is σ = 75934749240. Its totient is φ = 12232320000.

The previous prime is 30719299981. The next prime is 30719300009. The reversal of 30719300000 is 391703.

It can be written as a sum of positive squares in 12 ways, for example, as 27756892816 + 2962407184 = 166604^2 + 54428^2 .

It is not an unprimeable number, because it can be changed into a prime (30719300009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27699446 + ... + 27700554.

Almost surely, 2^30719300000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30719300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37967374620).

30719300000 is an abundant number, since it is smaller than the sum of its proper divisors (45215449240).

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

30719300000 is an equidigital number, since it uses as much as digits as its factorization.

30719300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 23.

Adding to 30719300000 its reverse (391703), we get a palindrome (30719691703).

The spelling of 30719300000 in words is "thirty billion, seven hundred nineteen million, three hundred thousand".