30010021320 has 32 divisors (see below), whose sum is σ = 90030064320. Its totient is φ = 8002672320.

The previous prime is 30010021303. The next prime is 30010021337. The reversal of 30010021320 is 2312001003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30010021303) and next prime (30010021337).

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 = 30010021296 and 30010021305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125041636 + ... + 125041875.

It is an arithmetic number, because the mean of its divisors is an integer number (2813439510).

Almost surely, 2^30010021320 is an apocalyptic number.

30010021320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30010021320 is an abundant number, since it is smaller than the sum of its proper divisors (60020043000).

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

30010021320 is a wasteful number, since it uses less digits than its factorization.

30010021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250083525 (or 250083521 counting only the distinct ones).

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

Adding to 30010021320 its reverse (2312001003), we get a palindrome (32322022323).

The spelling of 30010021320 in words is "thirty billion, ten million, twenty-one thousand, three hundred twenty".