103443042511 has 4 divisors (see below), whose sum is σ = 104689344312. Its totient is φ = 102196740712.

The previous prime is 103443042499. The next prime is 103443042557. The reversal of 103443042511 is 115240344301.

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 103443042511 - 2¹³ = 103443034319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103443042511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103443042011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623150776 + ... + 623150941.

It is an arithmetic number, because the mean of its divisors is an integer number (26172336078).

Almost surely, 2^103443042511 is an apocalyptic number.

103443042511 is a deficient number, since it is larger than the sum of its proper divisors (1246301801).

103443042511 is an equidigital number, since it uses as much as digits as its factorization.

103443042511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246301800.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 103443042511 its reverse (115240344301), we get a palindrome (218683386812).

The spelling of 103443042511 in words is "one hundred three billion, four hundred forty-three million, forty-two thousand, five hundred eleven".