30031130320 has 40 divisors (see below), whose sum is σ = 70046945280. Its totient is φ = 11973816960.

The previous prime is 30031130317. The next prime is 30031130321. The reversal of 30031130320 is 2303113003.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30031130294 and 30031130303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031130321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578640 + ... + 628399.

It is an arithmetic number, because the mean of its divisors is an integer number (1751173632).

Almost surely, 2^30031130320 is an apocalyptic number.

It is an amenable number.

30031130320 is an abundant number, since it is smaller than the sum of its proper divisors (40015814960).

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

30031130320 is a wasteful number, since it uses less digits than its factorization.

30031130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207363 (or 1207357 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 30031130320 its reverse (2303113003), we get a palindrome (32334243323).

The spelling of 30031130320 in words is "thirty billion, thirty-one million, one hundred thirty thousand, three hundred twenty".