201101212121023 has 2 divisors, whose sum is σ = 201101212121024. Its totient is φ = 201101212121022.

The previous prime is 201101212120951. The next prime is 201101212121027. The reversal of 201101212121023 is 320121212101102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201101212121023 - 2⁹ = 201101212120511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201101212121027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550606060511 + 100550606060512.

It is an arithmetic number, because the mean of its divisors is an integer number (100550606060512).

Almost surely, 2^{201101212121023} is an apocalyptic number.

201101212121023 is a deficient number, since it is larger than the sum of its proper divisors (1).

201101212121023 is an equidigital number, since it uses as much as digits as its factorization.

201101212121023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201101212121023 its reverse (320121212101102), we get a palindrome (521222424222125).

The spelling of 201101212121023 in words is "two hundred one trillion, one hundred one billion, two hundred twelve million, one hundred twenty-one thousand, twenty-three".