20512144334 has 24 divisors (see below), whose sum is σ = 33834753120. Its totient is φ = 9319527360.

The previous prime is 20512144307. The next prime is 20512144339. The reversal of 20512144334 is 43344121502.

It is a junction number, because it is equal to n+sod(n) for n = 20512144297 and 20512144306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20512144339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558902 + ... + 594470.

It is an arithmetic number, because the mean of its divisors is an integer number (1409781380).

Almost surely, 2^20512144334 is an apocalyptic number.

20512144334 is a deficient number, since it is larger than the sum of its proper divisors (13322608786).

20512144334 is a wasteful number, since it uses less digits than its factorization.

20512144334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37976 (or 37965 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20512144334 its reverse (43344121502), we get a palindrome (63856265836).

The spelling of 20512144334 in words is "twenty billion, five hundred twelve million, one hundred forty-four thousand, three hundred thirty-four".