201403123 has 2 divisors, whose sum is σ = 201403124. Its totient is φ = 201403122.

The previous prime is 201403093. The next prime is 201403129. The reversal of 201403123 is 321304102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201403123 - 2¹³ = 201394931 is a prime.

It is a super-3 number, since 3×201403123³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201403097 and 201403106.

It is not a weakly prime, because it can be changed into another prime (201403129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701561 + 100701562.

It is an arithmetic number, because the mean of its divisors is an integer number (100701562).

Almost surely, 2^201403123 is an apocalyptic number.

201403123 is a deficient number, since it is larger than the sum of its proper divisors (1).

201403123 is an equidigital number, since it uses as much as digits as its factorization.

201403123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 201403123 is about 14191.6568095483. The cubic root of 201403123 is about 586.1679474121.

Adding to 201403123 its reverse (321304102), we get a palindrome (522707225).

The spelling of 201403123 in words is "two hundred one million, four hundred three thousand, one hundred twenty-three".