3701111081 has 2 divisors, whose sum is σ = 3701111082. Its totient is φ = 3701111080.

The previous prime is 3701111077. The next prime is 3701111087. The reversal of 3701111081 is 1801111073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1996659856 + 1704451225 = 44684^2 + 41285^2 .

It is an emirp because it is prime and its reverse (1801111073) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3701111081 - 2² = 3701111077 is a prime.

It is a super-3 number, since 3×3701111081³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (3701111087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1850555540 + 1850555541.

It is an arithmetic number, because the mean of its divisors is an integer number (1850555541).

Almost surely, 2^3701111081 is an apocalyptic number.

It is an amenable number.

3701111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3701111081 is an equidigital number, since it uses as much as digits as its factorization.

3701111081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 23.

The square root of 3701111081 is about 60836.7576470015. The cubic root of 3701111081 is about 1546.8351769422.

The spelling of 3701111081 in words is "three billion, seven hundred one million, one hundred eleven thousand, eighty-one".