30130001020 has 72 divisors (see below), whose sum is σ = 74611729584. Its totient is φ = 10188751104.

The previous prime is 30130000961. The next prime is 30130001029. The reversal of 30130001020 is 2010003103.

It is a super-2 number, since 2×30130001020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30130000988 and 30130001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130001029) 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, 139042 + ... + 282121.

It is an arithmetic number, because the mean of its divisors is an integer number (1036274022).

Almost surely, 2^30130001020 is an apocalyptic number.

It is an amenable number.

30130001020 is an abundant number, since it is smaller than the sum of its proper divisors (44481728564).

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

30130001020 is a wasteful number, since it uses less digits than its factorization.

30130001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421259 (or 421250 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 30130001020 its reverse (2010003103), we get a palindrome (32140004123).

The spelling of 30130001020 in words is "thirty billion, one hundred thirty million, one thousand, twenty".