11431043001 has 16 divisors (see below), whose sum is σ = 19354147200. Its totient is φ = 6532024464.

The previous prime is 11431042991. The next prime is 11431043009. The reversal of 11431043001 is 10034013411.

It is not a de Polignac number, because 11431043001 - 2¹¹ = 11431040953 is a prime.

It is a super-2 number, since 2×11431043001² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11431043009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30240666 + ... + 30241043.

It is an arithmetic number, because the mean of its divisors is an integer number (1209634200).

Almost surely, 2^11431043001 is an apocalyptic number.

It is an amenable number.

11431043001 is a deficient number, since it is larger than the sum of its proper divisors (7923104199).

11431043001 is an equidigital number, since it uses as much as digits as its factorization.

11431043001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60481725 (or 60481719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11431043001 its reverse (10034013411), we get a palindrome (21465056412).

The spelling of 11431043001 in words is "eleven billion, four hundred thirty-one million, forty-three thousand, one".