201002303123 has 16 divisors (see below), whose sum is σ = 210212744160. Its totient is φ = 191999517696.

The previous prime is 201002303101. The next prime is 201002303189. The reversal of 201002303123 is 321303200102.

It is a cyclic number.

It is not a de Polignac number, because 201002303123 - 2⁸ = 201002302867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201002300123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591715 + ... + 1713347.

It is an arithmetic number, because the mean of its divisors is an integer number (13138296510).

Almost surely, 2^201002303123 is an apocalyptic number.

201002303123 is a deficient number, since it is larger than the sum of its proper divisors (9210441037).

201002303123 is a wasteful number, since it uses less digits than its factorization.

201002303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122486.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 201002303123 its reverse (321303200102), we get a palindrome (522305503225).

The spelling of 201002303123 in words is "two hundred one billion, two million, three hundred three thousand, one hundred twenty-three".