312215253311 has 4 divisors (see below), whose sum is σ = 336231811272. Its totient is φ = 288198695352.

The previous prime is 312215253299. The next prime is 312215253323. The reversal of 312215253311 is 113352512213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113352512213 = 47 ⋅2411755579.

It is an interprime number because it is at equal distance from previous prime (312215253299) and next prime (312215253323).

It is a cyclic number.

It is not a de Polignac number, because 312215253311 - 2¹⁸ = 312214991167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312215255311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12008278961 + ... + 12008278986.

It is an arithmetic number, because the mean of its divisors is an integer number (84057952818).

Almost surely, 2^312215253311 is an apocalyptic number.

312215253311 is a deficient number, since it is larger than the sum of its proper divisors (24016557961).

312215253311 is a wasteful number, since it uses less digits than its factorization.

312215253311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24016557960.

The product of its digits is 5400, while the sum is 29.

Adding to 312215253311 its reverse (113352512213), we get a palindrome (425567765524).

The spelling of 312215253311 in words is "three hundred twelve billion, two hundred fifteen million, two hundred fifty-three thousand, three hundred eleven".