30320003293188 has 144 divisors (see below), whose sum is σ = 82868083623360. Its totient is φ = 8602822335744.

The previous prime is 30320003293123. The next prime is 30320003293189. The reversal of 30320003293188 is 88139230002303.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (30320003293189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165061531 + ... + 165245117.

It is an arithmetic number, because the mean of its divisors is an integer number (575472802940).

Almost surely, 2^{30320003293188} 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 30320003293188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41434041811680).

30320003293188 is an abundant number, since it is smaller than the sum of its proper divisors (52548080330172).

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

30320003293188 is a wasteful number, since it uses less digits than its factorization.

30320003293188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185554 (or 185545 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 30320003293188 in words is "thirty trillion, three hundred twenty billion, three million, two hundred ninety-three thousand, one hundred eighty-eight".