1103431430423 has 16 divisors (see below), whose sum is σ = 1282893990720. Its totient is φ = 929454220800.

The previous prime is 1103431430359. The next prime is 1103431430443. The reversal of 1103431430423 is 3240341343011.

It is a happy number.

It is not a de Polignac number, because 1103431430423 - 2⁶ = 1103431430359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103431430443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691538 + ... + 1638623.

It is an arithmetic number, because the mean of its divisors is an integer number (80180874420).

Almost surely, 2^{1103431430423} is an apocalyptic number.

1103431430423 is a deficient number, since it is larger than the sum of its proper divisors (179462560297).

1103431430423 is a wasteful number, since it uses less digits than its factorization.

1103431430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331338.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1103431430423 its reverse (3240341343011), we get a palindrome (4343772773434).

The spelling of 1103431430423 in words is "one trillion, one hundred three billion, four hundred thirty-one million, four hundred thirty thousand, four hundred twenty-three".