312312311 has 16 divisors (see below), whose sum is σ = 326937600. Its totient is φ = 298088448.

The previous prime is 312312307. The next prime is 312312337. The reversal of 312312311 is 113213213.

It is a cyclic number.

It is not a de Polignac number, because 312312311 - 2² = 312312307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312312311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312317311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651770 + ... + 652248.

It is an arithmetic number, because the mean of its divisors is an integer number (20433600).

Almost surely, 2^312312311 is an apocalyptic number.

312312311 is a deficient number, since it is larger than the sum of its proper divisors (14625289).

312312311 is a wasteful number, since it uses less digits than its factorization.

312312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its digits is 108, while the sum is 17.

The square root of 312312311 is about 17672.3600857384. The cubic root of 312312311 is about 678.4685192532.

Adding to 312312311 its reverse (113213213), we get a palindrome (425525524).

The spelling of 312312311 in words is "three hundred twelve million, three hundred twelve thousand, three hundred eleven".