30203143020 has 144 divisors (see below), whose sum is σ = 92700447840. Its totient is φ = 7959168000.

The previous prime is 30203143001. The next prime is 30203143037. The reversal of 30203143020 is 2034130203.

30203143020 is a `hidden beast` number, since 30 + 20 + 314 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30203142984 and 30203143002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11979360 + ... + 11981880.

It is an arithmetic number, because the mean of its divisors is an integer number (643753110).

Almost surely, 2^30203143020 is an apocalyptic number.

30203143020 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 30203143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46350223920).

30203143020 is an abundant number, since it is smaller than the sum of its proper divisors (62497304820).

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

30203143020 is a wasteful number, since it uses less digits than its factorization.

30203143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296 (or 3291 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30203143020 its reverse (2034130203), we get a palindrome (32237273223).

The spelling of 30203143020 in words is "thirty billion, two hundred three million, one hundred forty-three thousand, twenty".