100031031011 has 2 divisors, whose sum is σ = 100031031012. Its totient is φ = 100031031010.

The previous prime is 100031030993. The next prime is 100031031017. The reversal of 100031031011 is 110130130001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100031031011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100031030983 and 100031031001.

It is not a weakly prime, because it can be changed into another prime (100031031017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015515505 + 50015515506.

It is an arithmetic number, because the mean of its divisors is an integer number (50015515506).

Almost surely, 2^100031031011 is an apocalyptic number.

100031031011 is a deficient number, since it is larger than the sum of its proper divisors (1).

100031031011 is an equidigital number, since it uses as much as digits as its factorization.

100031031011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 100031031011 its reverse (110130130001), we get a palindrome (210161161012).

The spelling of 100031031011 in words is "one hundred billion, thirty-one million, thirty-one thousand, eleven".