1143423131103 has 36 divisors (see below), whose sum is σ = 1821868352304. Its totient is φ = 690517396800.

The previous prime is 1143423131087. The next prime is 1143423131113. The reversal of 1143423131103 is 3011313243411.

1143423131103 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 423 + 131 + 103 = 666.

It is not a de Polignac number, because 1143423131103 - 2⁴ = 1143423131087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143423131113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1562275 + ... + 2174292.

Almost surely, 2^{1143423131103} is an apocalyptic number.

1143423131103 is a deficient number, since it is larger than the sum of its proper divisors (678445221201).

1143423131103 is a wasteful number, since it uses less digits than its factorization.

1143423131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736876 (or 3736862 counting only the distinct ones).

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

Adding to 1143423131103 its reverse (3011313243411), we get a palindrome (4154736374514).

The spelling of 1143423131103 in words is "one trillion, one hundred forty-three billion, four hundred twenty-three million, one hundred thirty-one thousand, one hundred three".