30003112131020 has 96 divisors (see below), whose sum is σ = 73967383526400. Its totient is φ = 10006897040640.

The previous prime is 30003112130989. The next prime is 30003112131023. The reversal of 30003112131020 is 2013121130003.

It is a self number, because there is not a number n which added to its sum of digits gives 30003112131020.

It is not an unprimeable number, because it can be changed into a prime (30003112131023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27430415 + ... + 28503225.

It is an arithmetic number, because the mean of its divisors is an integer number (770493578400).

Almost surely, 2^{30003112131020} 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 30003112131020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36983691763200).

30003112131020 is an abundant number, since it is smaller than the sum of its proper divisors (43964271395380).

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

30003112131020 is a wasteful number, since it uses less digits than its factorization.

30003112131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078263 (or 1078261 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30003112131020 its reverse (2013121130003), we get a palindrome (32016233261023).

The spelling of 30003112131020 in words is "thirty trillion, three billion, one hundred twelve million, one hundred thirty-one thousand, twenty".