1131228271311 has 16 divisors (see below), whose sum is σ = 1587875984640. Its totient is φ = 714375728640.

The previous prime is 1131228271259. The next prime is 1131228271337. The reversal of 1131228271311 is 1131728221311.

It is not a de Polignac number, because 1131228271311 - 2¹⁰ = 1131228270287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131228271351) 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, 680395 + ... + 1650876.

It is an arithmetic number, because the mean of its divisors is an integer number (99242249040).

Almost surely, 2^{1131228271311} is an apocalyptic number.

1131228271311 is a deficient number, since it is larger than the sum of its proper divisors (456647713329).

1131228271311 is a wasteful number, since it uses less digits than its factorization.

1131228271311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339806.

The product of its digits is 4032, while the sum is 33.

The spelling of 1131228271311 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-eight million, two hundred seventy-one thousand, three hundred eleven".