12102030312101 has 2 divisors, whose sum is σ = 12102030312102. Its totient is φ = 12102030312100.

The previous prime is 12102030312089. The next prime is 12102030312121. The reversal of 12102030312101 is 10121303020121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12091100655076 + 10929657025 = 3477226^2 + 104545^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102030312101 - 2⁶ = 12102030312037 is a prime.

It is a super-2 number, since 2×12102030312101² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102030312101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102030312121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051015156050 + 6051015156051.

It is an arithmetic number, because the mean of its divisors is an integer number (6051015156051).

Almost surely, 2^{12102030312101} is an apocalyptic number.

It is an amenable number.

12102030312101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102030312101 is an equidigital number, since it uses as much as digits as its factorization.

12102030312101 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 12102030312101 its reverse (10121303020121), we get a palindrome (22223333332222).

The spelling of 12102030312101 in words is "twelve trillion, one hundred two billion, thirty million, three hundred twelve thousand, one hundred one".