111302312813 has 2 divisors, whose sum is σ = 111302312814. Its totient is φ = 111302312812.

The previous prime is 111302312809. The next prime is 111302312827. The reversal of 111302312813 is 318213203111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106017313609 + 5284999204 = 325603^2 + 72698^2 .

It is a cyclic number.

It is not a de Polignac number, because 111302312813 - 2² = 111302312809 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111302342813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651156406 + 55651156407.

It is an arithmetic number, because the mean of its divisors is an integer number (55651156407).

Almost surely, 2^111302312813 is an apocalyptic number.

It is an amenable number.

111302312813 is a deficient number, since it is larger than the sum of its proper divisors (1).

111302312813 is an equidigital number, since it uses as much as digits as its factorization.

111302312813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 111302312813 its reverse (318213203111), we get a palindrome (429515515924).

The spelling of 111302312813 in words is "one hundred eleven billion, three hundred two million, three hundred twelve thousand, eight hundred thirteen".