1001231132329 has 4 divisors (see below), whose sum is σ = 1001868454800. Its totient is φ = 1000593809860.

The previous prime is 1001231132221. The next prime is 1001231132347. The reversal of 1001231132329 is 9232311321001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1001231132329 - 2¹³ = 1001231124137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001231132297 and 1001231132306.

It is not an unprimeable number, because it can be changed into a prime (1001231132399) 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 3 ways as a sum of consecutive naturals, for example, 318658879 + ... + 318662020.

It is an arithmetic number, because the mean of its divisors is an integer number (250467113700).

Almost surely, 2^{1001231132329} is an apocalyptic number.

It is an amenable number.

1001231132329 is a deficient number, since it is larger than the sum of its proper divisors (637322471).

1001231132329 is an equidigital number, since it uses as much as digits as its factorization.

1001231132329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637322470.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1001231132329 in words is "one trillion, one billion, two hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty-nine".