20120130030 has 128 divisors (see below), whose sum is σ = 64834753536. Its totient is φ = 3859200000.

The previous prime is 20120130001. The next prime is 20120130073. The reversal of 20120130030 is 3003102102.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20120129988 and 20120130015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 304971 + ... + 365030.

It is an arithmetic number, because the mean of its divisors is an integer number (506521512).

Almost surely, 2^20120130030 is an apocalyptic number.

20120130030 is an abundant number, since it is smaller than the sum of its proper divisors (44714623506).

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

20120130030 is a wasteful number, since it uses less digits than its factorization.

20120130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670042.

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

Adding to 20120130030 its reverse (3003102102), we get a palindrome (23123232132).

The spelling of 20120130030 in words is "twenty billion, one hundred twenty million, one hundred thirty thousand, thirty".