1131259371648 has 96 divisors (see below), whose sum is σ = 3495504940560. Its totient is φ = 323216957952.

The previous prime is 1131259371643. The next prime is 1131259371701. The reversal of 1131259371648 is 8461739521311.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 1131259371648.

It is not an unprimeable number, because it can be changed into a prime (1131259371643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30042286 + ... + 30079917.

Almost surely, 2^{1131259371648} is an apocalyptic number.

It is an amenable number.

1131259371648 is an abundant number, since it is smaller than the sum of its proper divisors (2364245568912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131259371648 is an equidigital number, since it uses as much as digits as its factorization.

1131259371648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60122234 (or 60122215 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 1131259371648 in words is "one trillion, one hundred thirty-one billion, two hundred fifty-nine million, three hundred seventy-one thousand, six hundred forty-eight".