1131055472771 has 16 divisors (see below), whose sum is σ = 1372709568000. Its totient is φ = 910323163008.

The previous prime is 1131055472761. The next prime is 1131055472831. The reversal of 1131055472771 is 1772745501311.

It is a happy number.

It is not a de Polignac number, because 1131055472771 - 2¹⁴ = 1131055456387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131055472711) 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, 37614071 + ... + 37644128.

It is an arithmetic number, because the mean of its divisors is an integer number (85794348000).

Almost surely, 2^{1131055472771} is an apocalyptic number.

1131055472771 is a deficient number, since it is larger than the sum of its proper divisors (241654095229).

1131055472771 is a wasteful number, since it uses less digits than its factorization.

1131055472771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75258338.

The product of its (nonzero) digits is 205800, while the sum is 44.

The spelling of 1131055472771 in words is "one trillion, one hundred thirty-one billion, fifty-five million, four hundred seventy-two thousand, seven hundred seventy-one".