30013123203312 has 160 divisors (see below), whose sum is σ = 83035107555840. Its totient is φ = 9320656097280.

The previous prime is 30013123203311. The next prime is 30013123203397. The reversal of 30013123203312 is 21330232131003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30013123203311) 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, 4303612 + ... + 8862692.

It is an arithmetic number, because the mean of its divisors is an integer number (518969422224).

Almost surely, 2^{30013123203312} 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 30013123203312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41517553777920).

30013123203312 is an abundant number, since it is smaller than the sum of its proper divisors (53021984352528).

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

30013123203312 is a wasteful number, since it uses less digits than its factorization.

30013123203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559271 (or 4559265 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 30013123203312 its reverse (21330232131003), we get a palindrome (51343355334315).

The spelling of 30013123203312 in words is "thirty trillion, thirteen billion, one hundred twenty-three million, two hundred three thousand, three hundred twelve".