11000031001 has 2 divisors, whose sum is σ = 11000031002. Its totient is φ = 11000031000.

The previous prime is 11000030971. The next prime is 11000031017. The reversal of 11000031001 is 10013000011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10928611600 + 71419401 = 104540^2 + 8451^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000031001 - 2⁵ = 11000030969 is a prime.

It is a super-2 number, since 2×11000031001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11000031701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500015500 + 5500015501.

It is an arithmetic number, because the mean of its divisors is an integer number (5500015501).

Almost surely, 2^11000031001 is an apocalyptic number.

It is an amenable number.

11000031001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000031001 is an equidigital number, since it uses as much as digits as its factorization.

11000031001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 11000031001 its reverse (10013000011), we get a palindrome (21013031012).

The spelling of 11000031001 in words is "eleven billion, thirty-one thousand, one".