12100201121123 has 2 divisors, whose sum is σ = 12100201121124. Its totient is φ = 12100201121122.

The previous prime is 12100201121089. The next prime is 12100201121161. The reversal of 12100201121123 is 32112110200121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12100201121123 - 2²² = 12100196926819 is a prime.

It is a super-2 number, since 2×12100201121123² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12100201021123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050100560561 + 6050100560562.

It is an arithmetic number, because the mean of its divisors is an integer number (6050100560562).

Almost surely, 2^{12100201121123} is an apocalyptic number.

12100201121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100201121123 is an equidigital number, since it uses as much as digits as its factorization.

12100201121123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12100201121123 its reverse (32112110200121), we get a palindrome (44212311321244).

The spelling of 12100201121123 in words is "twelve trillion, one hundred billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-three".