11431002001 has 4 divisors (see below), whose sum is σ = 11928002112. Its totient is φ = 10934001892.

The previous prime is 11431001971. The next prime is 11431002019. The reversal of 11431002001 is 10020013411.

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 11431002001 - 2⁷ = 11431001873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431002101) 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, 248500021 + ... + 248500066.

It is an arithmetic number, because the mean of its divisors is an integer number (2982000528).

Almost surely, 2^11431002001 is an apocalyptic number.

It is an amenable number.

11431002001 is a deficient number, since it is larger than the sum of its proper divisors (497000111).

11431002001 is an equidigital number, since it uses as much as digits as its factorization.

11431002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497000110.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11431002001 its reverse (10020013411), we get a palindrome (21451015412).

The spelling of 11431002001 in words is "eleven billion, four hundred thirty-one million, two thousand, one".