123430433443 has 2 divisors, whose sum is σ = 123430433444. Its totient is φ = 123430433442.

The previous prime is 123430433431. The next prime is 123430433537. The reversal of 123430433443 is 344334034321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123430433443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123430433399 and 123430433408.

It is not a weakly prime, because it can be changed into another prime (123430433543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61715216721 + 61715216722.

It is an arithmetic number, because the mean of its divisors is an integer number (61715216722).

Almost surely, 2^123430433443 is an apocalyptic number.

123430433443 is a deficient number, since it is larger than the sum of its proper divisors (1).

123430433443 is an equidigital number, since it uses as much as digits as its factorization.

123430433443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 123430433443 its reverse (344334034321), we get a palindrome (467764467764).

The spelling of 123430433443 in words is "one hundred twenty-three billion, four hundred thirty million, four hundred thirty-three thousand, four hundred forty-three".