311849311 has 2 divisors, whose sum is σ = 311849312. Its totient is φ = 311849310.

The previous prime is 311849233. The next prime is 311849323. The reversal of 311849311 is 113948113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311849311 - 2¹³ = 311841119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311849381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155924655 + 155924656.

It is an arithmetic number, because the mean of its divisors is an integer number (155924656).

Almost surely, 2^311849311 is an apocalyptic number.

311849311 is a deficient number, since it is larger than the sum of its proper divisors (1).

311849311 is an equidigital number, since it uses as much as digits as its factorization.

311849311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 311849311 is about 17659.2556751410. The cubic root of 311849311 is about 678.1330790829.

The spelling of 311849311 in words is "three hundred eleven million, eight hundred forty-nine thousand, three hundred eleven".