1103543235431 has 16 divisors (see below), whose sum is σ = 1385925576000. Its totient is φ = 873133105824.

The previous prime is 1103543235391. The next prime is 1103543235449. The reversal of 1103543235431 is 1345323453011.

It is not a de Polignac number, because 1103543235431 - 2¹⁴ = 1103543219047 is a prime.

It is a super-2 number, since 2×1103543235431² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1103543235391 and 1103543235400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103543235491) 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 15 ways as a sum of consecutive naturals, for example, 123738896 + ... + 123747813.

It is an arithmetic number, because the mean of its divisors is an integer number (86620348500).

Almost surely, 2^{1103543235431} is an apocalyptic number.

1103543235431 is a deficient number, since it is larger than the sum of its proper divisors (282382340569).

1103543235431 is an equidigital number, since it uses as much as digits as its factorization.

1103543235431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247486743 (or 247486729 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 1103543235431 its reverse (1345323453011), we get a palindrome (2448866688442).

The spelling of 1103543235431 in words is "one trillion, one hundred three billion, five hundred forty-three million, two hundred thirty-five thousand, four hundred thirty-one".