1131211011330 has 96 divisors (see below), whose sum is σ = 3005065350144. Its totient is φ = 295106433408.

The previous prime is 1131211011319. The next prime is 1131211011341. The reversal of 1131211011330 is 331101121311.

1131211011330 is a `hidden beast` number, since 1 + 1 + 312 + 1 + 10 + 11 + 330 = 666.

It is an interprime number because it is at equal distance from previous prime (1131211011319) and next prime (1131211011341).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9615544 + ... + 9732476.

It is an arithmetic number, because the mean of its divisors is an integer number (31302764064).

Almost surely, 2^{1131211011330} is an apocalyptic number.

1131211011330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131211011330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502532675072).

1131211011330 is an abundant number, since it is smaller than the sum of its proper divisors (1873854338814).

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

1131211011330 is a wasteful number, since it uses less digits than its factorization.

1131211011330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119280 (or 119277 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1131211011330 its reverse (331101121311), we get a palindrome (1462312132641).

The spelling of 1131211011330 in words is "one trillion, one hundred thirty-one billion, two hundred eleven million, eleven thousand, three hundred thirty".