312002311 has 4 divisors (see below), whose sum is σ = 313308000. Its totient is φ = 310696624.

The previous prime is 312002269. The next prime is 312002323. The reversal of 312002311 is 113200213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113200213 = 7 ⋅16171459.

It is a cyclic number.

It is not a de Polignac number, because 312002311 - 2¹¹ = 312000263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312002291 and 312002300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312002371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652486 + ... + 652963.

It is an arithmetic number, because the mean of its divisors is an integer number (78327000).

Almost surely, 2^312002311 is an apocalyptic number.

312002311 is a deficient number, since it is larger than the sum of its proper divisors (1305689).

312002311 is a wasteful number, since it uses less digits than its factorization.

312002311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305688.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 312002311 is about 17663.5871498402. The cubic root of 312002311 is about 678.2439631905.

Adding to 312002311 its reverse (113200213), we get a palindrome (425202524).

The spelling of 312002311 in words is "three hundred twelve million, two thousand, three hundred eleven".