312203020211011 has 4 divisors (see below), whose sum is σ = 315964502382312. Its totient is φ = 308441538039712.

The previous prime is 312203020211003. The next prime is 312203020211039. The reversal of 312203020211011 is 110112020302213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312203020211011 - 2³ = 312203020211003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312203020211011.

It is not an unprimeable number, because it can be changed into a prime (312203020215011) 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, 1880741085526 + ... + 1880741085691.

It is an arithmetic number, because the mean of its divisors is an integer number (78991125595578).

Almost surely, 2^{312203020211011} is an apocalyptic number.

312203020211011 is a deficient number, since it is larger than the sum of its proper divisors (3761482171301).

312203020211011 is an equidigital number, since it uses as much as digits as its factorization.

312203020211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761482171300.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 312203020211011 its reverse (110112020302213), we get a palindrome (422315040513224).

The spelling of 312203020211011 in words is "three hundred twelve trillion, two hundred three billion, twenty million, two hundred eleven thousand, eleven".