20435070043 has 2 divisors, whose sum is σ = 20435070044. Its totient is φ = 20435070042.

The previous prime is 20435070013. The next prime is 20435070053. The reversal of 20435070043 is 34007053402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20435070043 - 2³³ = 11845135451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20435069993 and 20435070020.

It is not a weakly prime, because it can be changed into another prime (20435070013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217535021 + 10217535022.

It is an arithmetic number, because the mean of its divisors is an integer number (10217535022).

Almost surely, 2^20435070043 is an apocalyptic number.

20435070043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20435070043 is an equidigital number, since it uses as much as digits as its factorization.

20435070043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 28.

The spelling of 20435070043 in words is "twenty billion, four hundred thirty-five million, seventy thousand, forty-three".