1312123301 has 2 divisors, whose sum is σ = 1312123302. Its totient is φ = 1312123300.

The previous prime is 1312123289. The next prime is 1312123327. The reversal of 1312123301 is 1033212131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1297872676 + 14250625 = 36026^2 + 3775^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312123301 - 2¹⁰ = 1312122277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312123301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312113301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656061650 + 656061651.

It is an arithmetic number, because the mean of its divisors is an integer number (656061651).

Almost surely, 2^1312123301 is an apocalyptic number.

It is an amenable number.

1312123301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312123301 is an equidigital number, since it uses as much as digits as its factorization.

1312123301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1312123301 is about 36223.2425522619. The cubic root of 1312123301 is about 1094.7750282521.

Adding to 1312123301 its reverse (1033212131), we get a palindrome (2345335432).

The spelling of 1312123301 in words is "one billion, three hundred twelve million, one hundred twenty-three thousand, three hundred one".