1940320111 has 2 divisors, whose sum is σ = 1940320112. Its totient is φ = 1940320110.

The previous prime is 1940320103. The next prime is 1940320153. The reversal of 1940320111 is 1110230491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1940320111 - 2³ = 1940320103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940320171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970160055 + 970160056.

It is an arithmetic number, because the mean of its divisors is an integer number (970160056).

Almost surely, 2^1940320111 is an apocalyptic number.

1940320111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940320111 is an equidigital number, since it uses as much as digits as its factorization.

1940320111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1940320111 is about 44049.0648141365. The cubic root of 1940320111 is about 1247.2622987174.

The spelling of 1940320111 in words is "one billion, nine hundred forty million, three hundred twenty thousand, one hundred eleven".