201230313123 has 8 divisors (see below), whose sum is σ = 306636667648. Its totient is φ = 114988750344.

The previous prime is 201230313083. The next prime is 201230313143. The reversal of 201230313123 is 321313032102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201230313123 - 2⁶ = 201230313059 is a prime.

It is a super-3 number, since 3×201230313123³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9582395863 = 201230313123 / (2 + 0 + 1 + 2 + 3 + 0 + 3 + 1 + 3 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201230313123.

It is not an unprimeable number, because it can be changed into a prime (201230313143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4791197911 + ... + 4791197952.

It is an arithmetic number, because the mean of its divisors is an integer number (38329583456).

Almost surely, 2^201230313123 is an apocalyptic number.

201230313123 is a deficient number, since it is larger than the sum of its proper divisors (105406354525).

201230313123 is an equidigital number, since it uses as much as digits as its factorization.

201230313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9582395873.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 201230313123 its reverse (321313032102), we get a palindrome (522543345225).

The spelling of 201230313123 in words is "two hundred one billion, two hundred thirty million, three hundred thirteen thousand, one hundred twenty-three".