1331023201332 has 96 divisors (see below), whose sum is σ = 3481087182720. Its totient is φ = 392274731520.

The previous prime is 1331023201273. The next prime is 1331023201337. The reversal of 1331023201332 is 2331023201331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331023201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11846394 + ... + 11958222.

It is an arithmetic number, because the mean of its divisors is an integer number (36261324820).

Almost surely, 2^{1331023201332} is an apocalyptic number.

1331023201332 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 1331023201332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1740543591360).

1331023201332 is an abundant number, since it is smaller than the sum of its proper divisors (2150063981388).

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

1331023201332 is a wasteful number, since it uses less digits than its factorization.

1331023201332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114321 (or 114319 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1331023201332 its reverse (2331023201331), we get a palindrome (3662046402663).

Subtracting 1331023201332 from its reverse (2331023201331), we obtain a palindrome (999999999999).

The spelling of 1331023201332 in words is "one trillion, three hundred thirty-one billion, twenty-three million, two hundred one thousand, three hundred thirty-two".