1001322131001 has 4 divisors (see below), whose sum is σ = 1335096174672. Its totient is φ = 667548087332.

The previous prime is 1001322130997. The next prime is 1001322131023. The reversal of 1001322131001 is 1001312231001.

It is a happy number.

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 1001322131001 - 2² = 1001322130997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001322131101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166887021831 + ... + 166887021836.

It is an arithmetic number, because the mean of its divisors is an integer number (333774043668).

Almost surely, 2^{1001322131001} is an apocalyptic number.

It is an amenable number.

1001322131001 is a deficient number, since it is larger than the sum of its proper divisors (333774043671).

1001322131001 is an equidigital number, since it uses as much as digits as its factorization.

1001322131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333774043670.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1001322131001 its reverse (1001312231001), we get a palindrome (2002634362002).

The spelling of 1001322131001 in words is "one trillion, one billion, three hundred twenty-two million, one hundred thirty-one thousand, one".