30012143000 has 128 divisors (see below), whose sum is σ = 82430974080. Its totient is φ = 10011686400.

The previous prime is 30012142973. The next prime is 30012143039. The reversal of 30012143000 is 34121003.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201062 + ... + 316938.

It is an arithmetic number, because the mean of its divisors is an integer number (643991985).

Almost surely, 2^30012143000 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 30012143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41215487040).

30012143000 is an abundant number, since it is smaller than the sum of its proper divisors (52418831080).

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

30012143000 is a wasteful number, since it uses less digits than its factorization.

30012143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115942 (or 115928 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30012143000 its reverse (34121003), we get a palindrome (30046264003).

The spelling of 30012143000 in words is "thirty billion, twelve million, one hundred forty-three thousand".