20121432482 has 16 divisors (see below), whose sum is σ = 30504264120. Its totient is φ = 9953618688.

The previous prime is 20121432481. The next prime is 20121432523. The reversal of 20121432482 is 28423412102.

It can be written as a sum of positive squares in 4 ways, for example, as 19965407401 + 156025081 = 141299^2 + 12491^2 .

It is not an unprimeable number, because it can be changed into a prime (20121432481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79418 + ... + 215754.

Almost surely, 2^20121432482 is an apocalyptic number.

20121432482 is a deficient number, since it is larger than the sum of its proper divisors (10382831638).

20121432482 is a wasteful number, since it uses less digits than its factorization.

20121432482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137125.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 20121432482 its reverse (28423412102), we get a palindrome (48544844584).

The spelling of 20121432482 in words is "twenty billion, one hundred twenty-one million, four hundred thirty-two thousand, four hundred eighty-two".