1131143711472 has 160 divisors (see below), whose sum is σ = 3393390100800. Its totient is φ = 360292810752.

The previous prime is 1131143711471. The next prime is 1131143711483. The reversal of 1131143711472 is 2741173411311.

1131143711472 is a `hidden beast` number, since 1 + 1 + 3 + 114 + 3 + 71 + 1 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131143711471) 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, 749808 + ... + 1680624.

It is an arithmetic number, because the mean of its divisors is an integer number (21208688130).

Almost surely, 2^{1131143711472} is an apocalyptic number.

1131143711472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131143711472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696695050400).

1131143711472 is an abundant number, since it is smaller than the sum of its proper divisors (2262246389328).

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

1131143711472 is a wasteful number, since it uses less digits than its factorization.

1131143711472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930960 (or 930948 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The spelling of 1131143711472 in words is "one trillion, one hundred thirty-one billion, one hundred forty-three million, seven hundred eleven thousand, four hundred seventy-two".