2001321113132 has 24 divisors (see below), whose sum is σ = 3820752913152. Its totient is φ = 909679755600.

The previous prime is 2001321113131. The next prime is 2001321113177. The reversal of 2001321113132 is 2313111231002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2001321113131) 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 7 ways as a sum of consecutive naturals, for example, 3837713 + ... + 4327895.

It is an arithmetic number, because the mean of its divisors is an integer number (159198038048).

Almost surely, 2^{2001321113132} is an apocalyptic number.

2001321113132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2001321113132 is a deficient number, since it is larger than the sum of its proper divisors (1819431800020).

2001321113132 is a wasteful number, since it uses less digits than its factorization.

2001321113132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582989 (or 582987 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2001321113132 its reverse (2313111231002), we get a palindrome (4314432344134).

The spelling of 2001321113132 in words is "two trillion, one billion, three hundred twenty-one million, one hundred thirteen thousand, one hundred thirty-two".