101213131211 has 2 divisors, whose sum is σ = 101213131212. Its totient is φ = 101213131210.

The previous prime is 101213131153. The next prime is 101213131249. The reversal of 101213131211 is 112131312101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101213131211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101213131211.

It is not a weakly prime, because it can be changed into another prime (101213131111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606565605 + 50606565606.

It is an arithmetic number, because the mean of its divisors is an integer number (50606565606).

Almost surely, 2^101213131211 is an apocalyptic number.

101213131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

101213131211 is an equidigital number, since it uses as much as digits as its factorization.

101213131211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 101213131211 its reverse (112131312101), we get a palindrome (213344443312).

It can be divided in two parts, 101 and 213131211, that added together give a palindrome (213131312).

The spelling of 101213131211 in words is "one hundred one billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred eleven".