1131104431143 has 32 divisors (see below), whose sum is σ = 1687411872000. Its totient is φ = 748806635808.

The previous prime is 1131104431069. The next prime is 1131104431181. The reversal of 1131104431143 is 3411344011311.

1131104431143 is a `hidden beast` number, since 113 + 1 + 104 + 431 + 14 + 3 = 666.

It is not a de Polignac number, because 1131104431143 - 2¹⁶ = 1131104365607 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 (1131104431183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15681880 + ... + 15753842.

It is an arithmetic number, because the mean of its divisors is an integer number (52731621000).

Almost surely, 2^{1131104431143} is an apocalyptic number.

1131104431143 is a deficient number, since it is larger than the sum of its proper divisors (556307440857).

1131104431143 is a wasteful number, since it uses less digits than its factorization.

1131104431143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76028 (or 76022 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 1131104431143 its reverse (3411344011311), we get a palindrome (4542448442454).

The spelling of 1131104431143 in words is "one trillion, one hundred thirty-one billion, one hundred four million, four hundred thirty-one thousand, one hundred forty-three".