312113383 has 2 divisors, whose sum is σ = 312113384. Its totient is φ = 312113382.

The previous prime is 312113377. The next prime is 312113407. The reversal of 312113383 is 383311213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312113383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312113303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156056691 + 156056692.

It is an arithmetic number, because the mean of its divisors is an integer number (156056692).

Almost surely, 2^312113383 is an apocalyptic number.

312113383 is a deficient number, since it is larger than the sum of its proper divisors (1).

312113383 is an equidigital number, since it uses as much as digits as its factorization.

312113383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 312113383 is about 17666.7309652918. The cubic root of 312113383 is about 678.3244379958.

Adding to 312113383 its reverse (383311213), we get a palindrome (695424596).

The spelling of 312113383 in words is "three hundred twelve million, one hundred thirteen thousand, three hundred eighty-three".