1234431311103 has 16 divisors (see below), whose sum is σ = 1828804860000. Its totient is φ = 822946227840.

The previous prime is 1234431311101. The next prime is 1234431311123. The reversal of 1234431311103 is 3011131344321.

1234431311103 is a `hidden beast` number, since 1 + 2 + 344 + 3 + 1 + 311 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 1234431311103 - 2¹ = 1234431311101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234431311101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4267693 + ... + 4547753.

It is an arithmetic number, because the mean of its divisors is an integer number (114300303750).

Almost surely, 2^{1234431311103} is an apocalyptic number.

1234431311103 is a deficient number, since it is larger than the sum of its proper divisors (594373548897).

1234431311103 is a wasteful number, since it uses less digits than its factorization.

1234431311103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443319 (or 443313 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 1234431311103 its reverse (3011131344321), we get a palindrome (4245562655424).

The spelling of 1234431311103 in words is "one trillion, two hundred thirty-four billion, four hundred thirty-one million, three hundred eleven thousand, one hundred three".