1023243312361 has 2 divisors, whose sum is σ = 1023243312362. Its totient is φ = 1023243312360.

The previous prime is 1023243312353. The next prime is 1023243312463. The reversal of 1023243312361 is 1632133423201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683360142336 + 339883170025 = 826656^2 + 582995^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023243312361 - 2³ = 1023243312353 is a prime.

It is a super-2 number, since 2×1023243312361² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1023240312361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511621656180 + 511621656181.

It is an arithmetic number, because the mean of its divisors is an integer number (511621656181).

Almost surely, 2^{1023243312361} is an apocalyptic number.

It is an amenable number.

1023243312361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023243312361 is an equidigital number, since it uses as much as digits as its factorization.

1023243312361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 1023243312361 its reverse (1632133423201), we get a palindrome (2655376735562).

The spelling of 1023243312361 in words is "one trillion, twenty-three billion, two hundred forty-three million, three hundred twelve thousand, three hundred sixty-one".