212312101103 has 2 divisors, whose sum is σ = 212312101104. Its totient is φ = 212312101102.

The previous prime is 212312101097. The next prime is 212312101121. The reversal of 212312101103 is 301101213212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212312101103 - 2⁴ = 212312101087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212312101163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106156050551 + 106156050552.

It is an arithmetic number, because the mean of its divisors is an integer number (106156050552).

Almost surely, 2^212312101103 is an apocalyptic number.

212312101103 is a deficient number, since it is larger than the sum of its proper divisors (1).

212312101103 is an equidigital number, since it uses as much as digits as its factorization.

212312101103 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 212312101103 its reverse (301101213212), we get a palindrome (513413314315).

The spelling of 212312101103 in words is "two hundred twelve billion, three hundred twelve million, one hundred one thousand, one hundred three".