11803401109 has 2 divisors, whose sum is σ = 11803401110. Its totient is φ = 11803401108.

The previous prime is 11803401107. The next prime is 11803401149. The reversal of 11803401109 is 90110430811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10918160100 + 885241009 = 104490^2 + 29753^2 .

It is a cyclic number.

It is not a de Polignac number, because 11803401109 - 2¹ = 11803401107 is a prime.

It is a super-3 number, since 3×11803401109³ (a number of 31 digits) contains 333 as substring.

Together with 11803401107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11803401107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5901700554 + 5901700555.

It is an arithmetic number, because the mean of its divisors is an integer number (5901700555).

Almost surely, 2^11803401109 is an apocalyptic number.

It is an amenable number.

11803401109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11803401109 is an equidigital number, since it uses as much as digits as its factorization.

11803401109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 11803401109 in words is "eleven billion, eight hundred three million, four hundred one thousand, one hundred nine".