20120102030 has 16 divisors (see below), whose sum is σ = 41389924320. Its totient is φ = 6898320672.

The previous prime is 20120102029. The next prime is 20120102039. The reversal of 20120102030 is 3020102102.

It is a happy number.

It is a super-2 number, since 2×20120102030² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120102039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143714945 + ... + 143715084.

It is an arithmetic number, because the mean of its divisors is an integer number (2586870270).

Almost surely, 2^20120102030 is an apocalyptic number.

20120102030 is an abundant number, since it is smaller than the sum of its proper divisors (21269822290).

20120102030 is a wasteful number, since it uses less digits than its factorization.

20120102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287430043.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20120102030 its reverse (3020102102), we get a palindrome (23140204132).

The spelling of 20120102030 in words is "twenty billion, one hundred twenty million, one hundred two thousand, thirty".