20123230412 has 48 divisors (see below), whose sum is σ = 37507458240. Its totient is φ = 9413978112.

The previous prime is 20123230411. The next prime is 20123230417. The reversal of 20123230412 is 21403232102.

It is not an unprimeable number, because it can be changed into a prime (20123230411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11285273 + ... + 11287055.

It is an arithmetic number, because the mean of its divisors is an integer number (781405380).

Almost surely, 2^20123230412 is an apocalyptic number.

It is an amenable number.

20123230412 is a deficient number, since it is larger than the sum of its proper divisors (17384227828).

20123230412 is a wasteful number, since it uses less digits than its factorization.

20123230412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20123230412 its reverse (21403232102), we get a palindrome (41526462514).

The spelling of 20123230412 in words is "twenty billion, one hundred twenty-three million, two hundred thirty thousand, four hundred twelve".