100031011 has 2 divisors, whose sum is σ = 100031012. Its totient is φ = 100031010.

The previous prime is 100031003. The next prime is 100031039. The reversal of 100031011 is 110130001.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (110130001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100031011 - 2³ = 100031003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100030985 and 100031003.

It is not a weakly prime, because it can be changed into another prime (100031051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015505 + 50015506.

It is an arithmetic number, because the mean of its divisors is an integer number (50015506).

Almost surely, 2^100031011 is an apocalyptic number.

100031011 is a deficient number, since it is larger than the sum of its proper divisors (1).

100031011 is an equidigital number, since it uses as much as digits as its factorization.

100031011 is an odious number, because the sum of its binary digits is odd.

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

The square root of 100031011 is about 10001.5504298084. The cubic root of 100031011 is about 464.2068585062.

Adding to 100031011 its reverse (110130001), we get a palindrome (210161012).

The spelling of 100031011 in words is "one hundred million, thirty-one thousand, eleven".