20112012430 has 128 divisors (see below), whose sum is σ = 40380249600. Its totient is φ = 7181830656.

The previous prime is 20112012409. The next prime is 20112012439. The reversal of 20112012430 is 3421021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112012439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57959517 + ... + 57959863.

It is an arithmetic number, because the mean of its divisors is an integer number (315470700).

Almost surely, 2^20112012430 is an apocalyptic number.

20112012430 is an abundant number, since it is smaller than the sum of its proper divisors (20268237170).

20112012430 is a wasteful number, since it uses less digits than its factorization.

20112012430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

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

Adding to 20112012430 its reverse (3421021102), we get a palindrome (23533033532).

The spelling of 20112012430 in words is "twenty billion, one hundred twelve million, twelve thousand, four hundred thirty".