1803681232141 has 2 divisors, whose sum is σ = 1803681232142. Its totient is φ = 1803681232140.

The previous prime is 1803681232139. The next prime is 1803681232159. The reversal of 1803681232141 is 1412321863081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1803189723241 + 491508900 = 1342829^2 + 22170^2 .

It is a cyclic number.

It is not a de Polignac number, because 1803681232141 - 2¹ = 1803681232139 is a prime.

Together with 1803681232139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1803681232094 and 1803681232103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1803681232541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901840616070 + 901840616071.

It is an arithmetic number, because the mean of its divisors is an integer number (901840616071).

Almost surely, 2^{1803681232141} is an apocalyptic number.

It is an amenable number.

1803681232141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1803681232141 is an equidigital number, since it uses as much as digits as its factorization.

1803681232141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 1803681232141 in words is "one trillion, eight hundred three billion, six hundred eighty-one million, two hundred thirty-two thousand, one hundred forty-one".