20430112012 has 24 divisors (see below), whose sum is σ = 36669169152. Its totient is φ = 9954310800.

The previous prime is 20430111991. The next prime is 20430112061. The reversal of 20430112012 is 21021103402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63664 + ... + 211927.

It is an arithmetic number, because the mean of its divisors is an integer number (1527882048).

Almost surely, 2^20430112012 is an apocalyptic number.

It is an amenable number.

20430112012 is a deficient number, since it is larger than the sum of its proper divisors (16239057140).

20430112012 is a wasteful number, since it uses less digits than its factorization.

20430112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276069 (or 276067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20430112012 its reverse (21021103402), we get a palindrome (41451215414).

The spelling of 20430112012 in words is "twenty billion, four hundred thirty million, one hundred twelve thousand, twelve".