2110040381 has 2 divisors, whose sum is σ = 2110040382. Its totient is φ = 2110040380.

The previous prime is 2110040363. The next prime is 2110040411. The reversal of 2110040381 is 1830400112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2087667481 + 22372900 = 45691^2 + 4730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110040381 is a prime.

It is a super-2 number, since 2×2110040381² = 8904540818901250322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110040341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055020190 + 1055020191.

It is an arithmetic number, because the mean of its divisors is an integer number (1055020191).

Almost surely, 2^2110040381 is an apocalyptic number.

It is an amenable number.

2110040381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110040381 is an equidigital number, since it uses as much as digits as its factorization.

2110040381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2110040381 is about 45935.1758568529. The cubic root of 2110040381 is about 1282.6167944836.

Adding to 2110040381 its reverse (1830400112), we get a palindrome (3940440493).

The spelling of 2110040381 in words is "two billion, one hundred ten million, forty thousand, three hundred eighty-one".