10101031211 has 2 divisors, whose sum is σ = 10101031212. Its totient is φ = 10101031210.

The previous prime is 10101031207. The next prime is 10101031223. The reversal of 10101031211 is 11213010101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10101031211 - 2² = 10101031207 is a prime.

It is a super-2 number, since 2×10101031211² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10101031192 and 10101031201.

It is not a weakly prime, because it can be changed into another prime (10101031201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050515605 + 5050515606.

It is an arithmetic number, because the mean of its divisors is an integer number (5050515606).

Almost surely, 2^10101031211 is an apocalyptic number.

10101031211 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101031211 is an equidigital number, since it uses as much as digits as its factorization.

10101031211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 10101031211 its reverse (11213010101), we get a palindrome (21314041312).

The spelling of 10101031211 in words is "ten billion, one hundred one million, thirty-one thousand, two hundred eleven".