1001321121132 has 36 divisors (see below), whose sum is σ = 2557211279896. Its totient is φ = 330332739840.

The previous prime is 1001321121131. The next prime is 1001321121139. The reversal of 1001321121132 is 2311211231001.

1001321121132 is a `hidden beast` number, since 100 + 1 + 321 + 1 + 211 + 32 = 666.

1001321121132 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1001321121132² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1001321121131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143370094 + ... + 143377077.

Almost surely, 2^{1001321121132} is an apocalyptic number.

1001321121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001321121132 is an abundant number, since it is smaller than the sum of its proper divisors (1555890158764).

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

1001321121132 is a wasteful number, since it uses less digits than its factorization.

1001321121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286747278 (or 286747273 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1001321121132 its reverse (2311211231001), we get a palindrome (3312532352133).

The spelling of 1001321121132 in words is "one trillion, one billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred thirty-two".