30000001021320 has 128 divisors (see below), whose sum is σ = 98184315939840. Its totient is φ = 7272542749440.

The previous prime is 30000001021261. The next prime is 30000001021381. The reversal of 30000001021320 is 2312010000003.

It is a happy number.

It is a super-2 number, since 2×30000001021320² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30000001021296 and 30000001021305.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55815379 + ... + 56350301.

It is an arithmetic number, because the mean of its divisors is an integer number (767064968280).

Almost surely, 2^{30000001021320} is an apocalyptic number.

30000001021320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30000001021320 is an abundant number, since it is smaller than the sum of its proper divisors (68184314918520).

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

30000001021320 is a wasteful number, since it uses less digits than its factorization.

30000001021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577435 (or 577431 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30000001021320 its reverse (2312010000003), we get a palindrome (32312011021323).

The spelling of 30000001021320 in words is "thirty trillion, one million, twenty-one thousand, three hundred twenty".