20455030043 has 16 divisors (see below), whose sum is σ = 23729917440. Its totient is φ = 17268987456.

The previous prime is 20455030033. The next prime is 20455030061. The reversal of 20455030043 is 34003055402.

It is not a de Polignac number, because 20455030043 - 2⁶ = 20455029979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20455029994 and 20455030021.

It is not an unprimeable number, because it can be changed into a prime (20455030033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350546 + ... + 404712.

It is an arithmetic number, because the mean of its divisors is an integer number (1483119840).

Almost surely, 2^20455030043 is an apocalyptic number.

20455030043 is a deficient number, since it is larger than the sum of its proper divisors (3274887397).

20455030043 is an equidigital number, since it uses as much as digits as its factorization.

20455030043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54986.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 20455030043 its reverse (34003055402), we get a palindrome (54458085445).

The spelling of 20455030043 in words is "twenty billion, four hundred fifty-five million, thirty thousand, forty-three".