20432134013 has 2 divisors, whose sum is σ = 20432134014. Its totient is φ = 20432134012.

The previous prime is 20432134003. The next prime is 20432134049. The reversal of 20432134013 is 31043123402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19722550969 + 709583044 = 140437^2 + 26638^2 .

It is a cyclic number.

It is not a de Polignac number, because 20432134013 - 2²² = 20427939709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20432134013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432134003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216067006 + 10216067007.

It is an arithmetic number, because the mean of its divisors is an integer number (10216067007).

Almost surely, 2^20432134013 is an apocalyptic number.

It is an amenable number.

20432134013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432134013 is an equidigital number, since it uses as much as digits as its factorization.

20432134013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20432134013 its reverse (31043123402), we get a palindrome (51475257415).

The spelling of 20432134013 in words is "twenty billion, four hundred thirty-two million, one hundred thirty-four thousand, thirteen".