1242323310313 has 2 divisors, whose sum is σ = 1242323310314. Its totient is φ = 1242323310312.

The previous prime is 1242323310301. The next prime is 1242323310533. The reversal of 1242323310313 is 3130133232421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 706319223184 + 536004087129 = 840428^2 + 732123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1242323310313 is a prime.

It is a super-3 number, since 3×1242323310313³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1242323320313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621161655156 + 621161655157.

It is an arithmetic number, because the mean of its divisors is an integer number (621161655157).

Almost surely, 2^{1242323310313} is an apocalyptic number.

It is an amenable number.

1242323310313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242323310313 is an equidigital number, since it uses as much as digits as its factorization.

1242323310313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1242323310313 its reverse (3130133232421), we get a palindrome (4372456542734).

The spelling of 1242323310313 in words is "one trillion, two hundred forty-two billion, three hundred twenty-three million, three hundred ten thousand, three hundred thirteen".