30100020030 has 48 divisors (see below), whose sum is σ = 80168843664. Its totient is φ = 7830898560.

The previous prime is 30100020019. The next prime is 30100020037. The reversal of 30100020030 is 3002000103.

It is a happy number.

It is a super-2 number, since 2×30100020030² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30100019994 and 30100020021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100020037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4074904 + ... + 4082283.

It is an arithmetic number, because the mean of its divisors is an integer number (1670184243).

Almost surely, 2^30100020030 is an apocalyptic number.

30100020030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30100020030 is an abundant number, since it is smaller than the sum of its proper divisors (50068823634).

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

30100020030 is a wasteful number, since it uses less digits than its factorization.

30100020030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157241 (or 8157238 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

Adding to 30100020030 its reverse (3002000103), we get a palindrome (33102020133).

The spelling of 30100020030 in words is "thirty billion, one hundred million, twenty thousand, thirty".