30000000000000 has 392 divisors, whose sum is σ = 99993896467992. Its totient is φ = 8000000000000.

The previous prime is 29999999999987. The next prime is 30000000000011. The reversal of 30000000000000 is 3.

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5999999999998 + ... + 6000000000002.

Almost surely, 2^{30000000000000} is an apocalyptic number.

30000000000000 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 30000000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49996948233996).

30000000000000 is an abundant number, since it is smaller than the sum of its proper divisors (69993896467992).

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

30000000000000 is an frugal number, since it uses more digits than its factorization.

30000000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 3.

The spelling of 30000000000000 in words is "thirty trillion", and thus it is an aban number, an eban number, and an uban number.