20345063043 has 24 divisors (see below), whose sum is σ = 28236670528. Its totient is φ = 13023119088.

The previous prime is 20345063023. The next prime is 20345063047. The reversal of 20345063043 is 34036054302.

It is not a de Polignac number, because 20345063043 - 2¹² = 20345058947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20345063043.

It is not an unprimeable number, because it can be changed into a prime (20345063047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426396 + ... + 471702.

Almost surely, 2^20345063043 is an apocalyptic number.

20345063043 is a deficient number, since it is larger than the sum of its proper divisors (7891607485).

20345063043 is an equidigital number, since it uses as much as digits as its factorization.

20345063043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45471 (or 45412 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

The spelling of 20345063043 in words is "twenty billion, three hundred forty-five million, sixty-three thousand, forty-three".