20113432043 has 2 divisors, whose sum is σ = 20113432044. Its totient is φ = 20113432042.

The previous prime is 20113432039. The next prime is 20113432051. The reversal of 20113432043 is 34023431102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113432043 - 2² = 20113432039 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113432013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056716021 + 10056716022.

It is an arithmetic number, because the mean of its divisors is an integer number (10056716022).

Almost surely, 2^20113432043 is an apocalyptic number.

20113432043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113432043 is an equidigital number, since it uses as much as digits as its factorization.

20113432043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20113432043 its reverse (34023431102), we get a palindrome (54136863145).

The spelling of 20113432043 in words is "twenty billion, one hundred thirteen million, four hundred thirty-two thousand, forty-three".