312011010211 has 4 divisors (see below), whose sum is σ = 313162342624. Its totient is φ = 310859677800.

The previous prime is 312011010209. The next prime is 312011010257. The reversal of 312011010211 is 112010110213.

It is a happy number.

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 312011010211 - 2¹ = 312011010209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312011010191 and 312011010200.

It is not an unprimeable number, because it can be changed into a prime (312011010011) 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, 575665800 + ... + 575666341.

It is an arithmetic number, because the mean of its divisors is an integer number (78290585656).

Almost surely, 2^312011010211 is an apocalyptic number.

312011010211 is a deficient number, since it is larger than the sum of its proper divisors (1151332413).

312011010211 is a wasteful number, since it uses less digits than its factorization.

312011010211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151332412.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 312011010211 its reverse (112010110213), we get a palindrome (424021120424).

The spelling of 312011010211 in words is "three hundred twelve billion, eleven million, ten thousand, two hundred eleven".