30231000000 has 294 divisors, whose sum is σ = 108345488160. Its totient is φ = 8059200000.

The previous prime is 30230999993. The next prime is 30231000001. The reversal of 30231000000 is 13203.

It is a happy number.

It is a super-2 number, since 2×30231000000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231000001) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 8998321 + ... + 9001679.

Almost surely, 2^30231000000 is an apocalyptic number.

30231000000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54172744080).

30231000000 is an abundant number, since it is smaller than the sum of its proper divisors (78114488160).

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

30231000000 is an frugal number, since it uses more digits than its factorization.

30231000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 30231000000 its reverse (13203), we get a palindrome (30231013203).

The spelling of 30231000000 in words is "thirty billion, two hundred thirty-one million", and thus it is an aban number.