201312303023 has 4 divisors (see below), whose sum is σ = 216797864808. Its totient is φ = 185826741240.

The previous prime is 201312303007. The next prime is 201312303149. The reversal of 201312303023 is 320303213102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201312303023 - 2⁴ = 201312303007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201312302986 and 201312303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312303323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7742780873 + ... + 7742780898.

It is an arithmetic number, because the mean of its divisors is an integer number (54199466202).

Almost surely, 2^201312303023 is an apocalyptic number.

201312303023 is a deficient number, since it is larger than the sum of its proper divisors (15485561785).

201312303023 is a wasteful number, since it uses less digits than its factorization.

201312303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15485561784.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201312303023 its reverse (320303213102), we get a palindrome (521615516125).

The spelling of 201312303023 in words is "two hundred one billion, three hundred twelve million, three hundred three thousand, twenty-three".