1133111165280 has 192 divisors, whose sum is σ = 3586514899968. Its totient is φ = 300707389440.

The previous prime is 1133111165267. The next prime is 1133111165281. The reversal of 1133111165280 is 825611113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133111165281) 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, 264558019 + ... + 264562301.

It is an arithmetic number, because the mean of its divisors is an integer number (18679765104).

Almost surely, 2^{1133111165280} is an apocalyptic number.

1133111165280 is a gapful number since it is divisible by the number (10) 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 1133111165280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1793257449984).

1133111165280 is an abundant number, since it is smaller than the sum of its proper divisors (2453403734688).

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

1133111165280 is a wasteful number, since it uses less digits than its factorization.

1133111165280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829 (or 6821 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

Adding to 1133111165280 its reverse (825611113311), we get a palindrome (1958722278591).

The spelling of 1133111165280 in words is "one trillion, one hundred thirty-three billion, one hundred eleven million, one hundred sixty-five thousand, two hundred eighty".