201312616223 has 4 divisors (see below), whose sum is σ = 201357526488. Its totient is φ = 201267705960.

The previous prime is 201312616177. The next prime is 201312616259. The reversal of 201312616223 is 322616213102.

It is a happy number.

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 201312616223 - 2³⁶ = 132593139487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201312619223) 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, 22448408 + ... + 22457373.

It is an arithmetic number, because the mean of its divisors is an integer number (50339381622).

Almost surely, 2^201312616223 is an apocalyptic number.

201312616223 is a deficient number, since it is larger than the sum of its proper divisors (44910265).

201312616223 is an equidigital number, since it uses as much as digits as its factorization.

201312616223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44910264.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 201312616223 its reverse (322616213102), we get a palindrome (523928829325).

The spelling of 201312616223 in words is "two hundred one billion, three hundred twelve million, six hundred sixteen thousand, two hundred twenty-three".