201001012123 has 2 divisors, whose sum is σ = 201001012124. Its totient is φ = 201001012122.

The previous prime is 201001012117. The next prime is 201001012129. The reversal of 201001012123 is 321210100102.

201001012123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (201001012117) and next prime (201001012129).

It is a cyclic number.

It is not a de Polignac number, because 201001012123 - 2¹⁷ = 201000881051 is a prime.

It is not a weakly prime, because it can be changed into another prime (201001012129) 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, 100500506061 + 100500506062.

It is an arithmetic number, because the mean of its divisors is an integer number (100500506062).

Almost surely, 2^201001012123 is an apocalyptic number.

201001012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001012123 is an equidigital number, since it uses as much as digits as its factorization.

201001012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201001012123 its reverse (321210100102), we get a palindrome (522211112225).

The spelling of 201001012123 in words is "two hundred one billion, one million, twelve thousand, one hundred twenty-three".