20430034043 has 4 divisors (see below), whose sum is σ = 20431049088. Its totient is φ = 20429019000.

The previous prime is 20430034013. The next prime is 20430034061. The reversal of 20430034043 is 34043003402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20430034043 - 2¹⁴ = 20430017659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20430034003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476708 + ... + 517793.

It is an arithmetic number, because the mean of its divisors is an integer number (5107762272).

Almost surely, 2^20430034043 is an apocalyptic number.

20430034043 is a deficient number, since it is larger than the sum of its proper divisors (1015045).

20430034043 is an equidigital number, since it uses as much as digits as its factorization.

20430034043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015044.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20430034043 its reverse (34043003402), we get a palindrome (54473037445).

The spelling of 20430034043 in words is "twenty billion, four hundred thirty million, thirty-four thousand, forty-three".