30231131320 has 64 divisors (see below), whose sum is σ = 74810977920. Its totient is φ = 10924760064.

The previous prime is 30231131309. The next prime is 30231131321. The reversal of 30231131320 is 2313113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231131321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594037 + ... + 642916.

It is an arithmetic number, because the mean of its divisors is an integer number (1168921530).

Almost surely, 2^30231131320 is an apocalyptic number.

It is an amenable number.

30231131320 is an abundant number, since it is smaller than the sum of its proper divisors (44579846600).

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

30231131320 is a wasteful number, since it uses less digits than its factorization.

30231131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237024 (or 1237020 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30231131320 its reverse (2313113203), we get a palindrome (32544244523).

The spelling of 30231131320 in words is "thirty billion, two hundred thirty-one million, one hundred thirty-one thousand, three hundred twenty".