123311201201 has 8 divisors (see below), whose sum is σ = 125084908104. Its totient is φ = 121539778560.

The previous prime is 123311201197. The next prime is 123311201219. The reversal of 123311201201 is 102102113321.

It can be written as a sum of positive squares in 4 ways, for example, as 828000625 + 122483200576 = 28775^2 + 349976^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123311201201 - 2² = 123311201197 is a prime.

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 123311201201.

It is not an unprimeable number, because it can be changed into a prime (123311201291) 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 7 ways as a sum of consecutive naturals, for example, 462176 + ... + 678401.

It is an arithmetic number, because the mean of its divisors is an integer number (15635613513).

Almost surely, 2^123311201201 is an apocalyptic number.

It is an amenable number.

123311201201 is a deficient number, since it is larger than the sum of its proper divisors (1773706903).

123311201201 is a wasteful number, since it uses less digits than its factorization.

123311201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142131.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123311201201 its reverse (102102113321), we get a palindrome (225413314522).

The spelling of 123311201201 in words is "one hundred twenty-three billion, three hundred eleven million, two hundred one thousand, two hundred one".