20443068569531 has 2 divisors, whose sum is σ = 20443068569532. Its totient is φ = 20443068569530.

The previous prime is 20443068569509. The next prime is 20443068569549. The reversal of 20443068569531 is 13596586034402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20443068569531 - 2¹⁴ = 20443068553147 is a prime.

It is a super-2 number, since 2×20443068569531² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20443068569551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221534284765 + 10221534284766.

It is an arithmetic number, because the mean of its divisors is an integer number (10221534284766).

Almost surely, 2^{20443068569531} is an apocalyptic number.

20443068569531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20443068569531 is an equidigital number, since it uses as much as digits as its factorization.

20443068569531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 20443068569531 in words is "twenty trillion, four hundred forty-three billion, sixty-eight million, five hundred sixty-nine thousand, five hundred thirty-one".