311213301241 has 2 divisors, whose sum is σ = 311213301242. Its totient is φ = 311213301240.

The previous prime is 311213301233. The next prime is 311213301319. The reversal of 311213301241 is 142103312113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195616021225 + 115597280016 = 442285^2 + 339996^2 .

It is a cyclic number.

It is not a de Polignac number, because 311213301241 - 2³ = 311213301233 is a prime.

It is not a weakly prime, because it can be changed into another prime (311213307241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155606650620 + 155606650621.

It is an arithmetic number, because the mean of its divisors is an integer number (155606650621).

Almost surely, 2^311213301241 is an apocalyptic number.

It is an amenable number.

311213301241 is a deficient number, since it is larger than the sum of its proper divisors (1).

311213301241 is an equidigital number, since it uses as much as digits as its factorization.

311213301241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 311213301241 its reverse (142103312113), we get a palindrome (453316613354).

The spelling of 311213301241 in words is "three hundred eleven billion, two hundred thirteen million, three hundred one thousand, two hundred forty-one".