20432243313 has 48 divisors (see below), whose sum is σ = 32314613760. Its totient is φ = 12392546400.

The previous prime is 20432243311. The next prime is 20432243317. The reversal of 20432243313 is 31334223402.

20432243313 is a `hidden beast` number, since 2 + 0 + 4 + 322 + 4 + 331 + 3 = 666.

It is not a de Polignac number, because 20432243313 - 2¹ = 20432243311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20432243311) 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 47 ways as a sum of consecutive naturals, for example, 679720 + ... + 709142.

It is an arithmetic number, because the mean of its divisors is an integer number (673221120).

Almost surely, 2^20432243313 is an apocalyptic number.

It is an amenable number.

20432243313 is a deficient number, since it is larger than the sum of its proper divisors (11882370447).

20432243313 is a wasteful number, since it uses less digits than its factorization.

20432243313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29610 (or 29607 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 20432243313 its reverse (31334223402), we get a palindrome (51766466715).

The spelling of 20432243313 in words is "twenty billion, four hundred thirty-two million, two hundred forty-three thousand, three hundred thirteen".