135672421043 has 2 divisors, whose sum is σ = 135672421044. Its totient is φ = 135672421042.

The previous prime is 135672421009. The next prime is 135672421051. The reversal of 135672421043 is 340124276531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135672421043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135672420988 and 135672421006.

It is not a weakly prime, because it can be changed into another prime (135672721043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67836210521 + 67836210522.

It is an arithmetic number, because the mean of its divisors is an integer number (67836210522).

Almost surely, 2^135672421043 is an apocalyptic number.

135672421043 is a deficient number, since it is larger than the sum of its proper divisors (1).

135672421043 is an equidigital number, since it uses as much as digits as its factorization.

135672421043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

Adding to 135672421043 its reverse (340124276531), we get a palindrome (475796697574).

The spelling of 135672421043 in words is "one hundred thirty-five billion, six hundred seventy-two million, four hundred twenty-one thousand, forty-three".