1312023233237 has 2 divisors, whose sum is σ = 1312023233238. Its totient is φ = 1312023233236.

The previous prime is 1312023233203. The next prime is 1312023233263. The reversal of 1312023233237 is 7323323202131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161995605681 + 150027627556 = 1077959^2 + 387334^2 .

It is an emirp because it is prime and its reverse (7323323202131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312023233237 - 2⁸ = 1312023232981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312023232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656011616618 + 656011616619.

It is an arithmetic number, because the mean of its divisors is an integer number (656011616619).

Almost surely, 2^{1312023233237} is an apocalyptic number.

It is an amenable number.

1312023233237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312023233237 is an equidigital number, since it uses as much as digits as its factorization.

1312023233237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 32.

Adding to 1312023233237 its reverse (7323323202131), we get a palindrome (8635346435368).

The spelling of 1312023233237 in words is "one trillion, three hundred twelve billion, twenty-three million, two hundred thirty-three thousand, two hundred thirty-seven".