100001011031 has 2 divisors, whose sum is σ = 100001011032. Its totient is φ = 100001011030.

The previous prime is 100001011027. The next prime is 100001011039. The reversal of 100001011031 is 130110100001.

It is an a-pointer prime, because the next prime (100001011039) can be obtained adding 100001011031 to its sum of digits (8).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100001011031 - 2² = 100001011027 is a prime.

It is a super-2 number, since 2×100001011031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100001011039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000505515 + 50000505516.

It is an arithmetic number, because the mean of its divisors is an integer number (50000505516).

Almost surely, 2^100001011031 is an apocalyptic number.

100001011031 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001011031 is an equidigital number, since it uses as much as digits as its factorization.

100001011031 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 8.

Adding to 100001011031 its reverse (130110100001), we get a palindrome (230111111032).

The spelling of 100001011031 in words is "one hundred billion, one million, eleven thousand, thirty-one".