1131055472773 has 24 divisors (see below), whose sum is σ = 1227499840512. Its totient is φ = 1041504785664.

The previous prime is 1131055472761. The next prime is 1131055472831. The reversal of 1131055472773 is 3772745501311.

It is not a de Polignac number, because 1131055472773 - 2¹⁷ = 1131055341701 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 (1131055472473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43004215 + ... + 43030507.

It is an arithmetic number, because the mean of its divisors is an integer number (51145826688).

Almost surely, 2^{1131055472773} is an apocalyptic number.

It is an amenable number.

1131055472773 is a deficient number, since it is larger than the sum of its proper divisors (96444367739).

1131055472773 is a wasteful number, since it uses less digits than its factorization.

1131055472773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29541 (or 29524 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 46.

It can be divided in two parts, 113105547 and 2773, that added together give a triangular number (113108320 = T₁₅₀₄₀).

The spelling of 1131055472773 in words is "one trillion, one hundred thirty-one billion, fifty-five million, four hundred seventy-two thousand, seven hundred seventy-three".