311061379 has 2 divisors, whose sum is σ = 311061380. Its totient is φ = 311061378.

The previous prime is 311061353. The next prime is 311061389. The reversal of 311061379 is 973160113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311061379 - 2¹³ = 311053187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311061379.

It is not a weakly prime, because it can be changed into another prime (311061329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155530689 + 155530690.

It is an arithmetic number, because the mean of its divisors is an integer number (155530690).

Almost surely, 2^311061379 is an apocalyptic number.

311061379 is a deficient number, since it is larger than the sum of its proper divisors (1).

311061379 is an equidigital number, since it uses as much as digits as its factorization.

311061379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 311061379 is about 17636.9322445827. The cubic root of 311061379 is about 677.5614639026.

The spelling of 311061379 in words is "three hundred eleven million, sixty-one thousand, three hundred seventy-nine".