20300535439 has 2 divisors, whose sum is σ = 20300535440. Its totient is φ = 20300535438.

The previous prime is 20300535433. The next prime is 20300535461. The reversal of 20300535439 is 93453500302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20300535439 - 2⁹ = 20300534927 is a prime.

It is a super-2 number, since 2×20300535439² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20300535433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150267719 + 10150267720.

It is an arithmetic number, because the mean of its divisors is an integer number (10150267720).

Almost surely, 2^20300535439 is an apocalyptic number.

20300535439 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300535439 is an equidigital number, since it uses as much as digits as its factorization.

20300535439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 34.

The spelling of 20300535439 in words is "twenty billion, three hundred million, five hundred thirty-five thousand, four hundred thirty-nine".