1100400071 has 2 divisors, whose sum is σ = 1100400072. Its totient is φ = 1100400070.

The previous prime is 1100400053. The next prime is 1100400083. The reversal of 1100400071 is 1700040011.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1700040011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100400071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100400011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550200035 + 550200036.

It is an arithmetic number, because the mean of its divisors is an integer number (550200036).

Almost surely, 2^1100400071 is an apocalyptic number.

1100400071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100400071 is an equidigital number, since it uses as much as digits as its factorization.

1100400071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1100400071 is about 33172.2786525135. The cubic root of 1100400071 is about 1032.4052473595.

Adding to 1100400071 its reverse (1700040011), we get a palindrome (2800440082).

The spelling of 1100400071 in words is "one billion, one hundred million, four hundred thousand, seventy-one".