1131021332412 has 96 divisors (see below), whose sum is σ = 2844496300800. Its totient is φ = 348619686912.

The previous prime is 1131021332411. The next prime is 1131021332453. The reversal of 1131021332412 is 2142331201311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131021332411) 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, 14559418 + ... + 14636894.

It is an arithmetic number, because the mean of its divisors is an integer number (29630169800).

Almost surely, 2^{1131021332412} is an apocalyptic number.

1131021332412 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 1131021332412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422248150400).

1131021332412 is an abundant number, since it is smaller than the sum of its proper divisors (1713474968388).

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

1131021332412 is a wasteful number, since it uses less digits than its factorization.

1131021332412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79035 (or 79033 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1131021332412 its reverse (2142331201311), we get a palindrome (3273352533723).

The spelling of 1131021332412 in words is "one trillion, one hundred thirty-one billion, twenty-one million, three hundred thirty-two thousand, four hundred twelve".