40103443803161 has 2 divisors, whose sum is σ = 40103443803162. Its totient is φ = 40103443803160.

The previous prime is 40103443803121. The next prime is 40103443803223. The reversal of 40103443803161 is 16130834430104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22663131457561 + 17440312345600 = 4760581^2 + 4176160^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103443803161 - 2¹⁰ = 40103443802137 is a prime.

It is not a weakly prime, because it can be changed into another prime (40103443803121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051721901580 + 20051721901581.

It is an arithmetic number, because the mean of its divisors is an integer number (20051721901581).

Almost surely, 2^{40103443803161} is an apocalyptic number.

It is an amenable number.

40103443803161 is a deficient number, since it is larger than the sum of its proper divisors (1).

40103443803161 is an equidigital number, since it uses as much as digits as its factorization.

40103443803161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 40103443803161 in words is "forty trillion, one hundred three billion, four hundred forty-three million, eight hundred three thousand, one hundred sixty-one".