1918352311 has 2 divisors, whose sum is σ = 1918352312. Its totient is φ = 1918352310.

The previous prime is 1918352299. The next prime is 1918352353. The reversal of 1918352311 is 1132538191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1918352311 - 2⁵ = 1918352279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1918352011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959176155 + 959176156.

It is an arithmetic number, because the mean of its divisors is an integer number (959176156).

Almost surely, 2^1918352311 is an apocalyptic number.

1918352311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1918352311 is an equidigital number, since it uses as much as digits as its factorization.

1918352311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 1918352311 is about 43798.9989725793. The cubic root of 1918352311 is about 1242.5373622384.

The spelling of 1918352311 in words is "one billion, nine hundred eighteen million, three hundred fifty-two thousand, three hundred eleven".