101310212123 has 2 divisors, whose sum is σ = 101310212124. Its totient is φ = 101310212122.

The previous prime is 101310212071. The next prime is 101310212177. The reversal of 101310212123 is 321212013101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101310212123 - 2³² = 97015244827 is a prime.

It is not a weakly prime, because it can be changed into another prime (101310212183) 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, 50655106061 + 50655106062.

It is an arithmetic number, because the mean of its divisors is an integer number (50655106062).

Almost surely, 2^101310212123 is an apocalyptic number.

101310212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101310212123 is an equidigital number, since it uses as much as digits as its factorization.

101310212123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101310212123 its reverse (321212013101), we get a palindrome (422522225224).

The spelling of 101310212123 in words is "one hundred one billion, three hundred ten million, two hundred twelve thousand, one hundred twenty-three".