1802111101097 has 2 divisors, whose sum is σ = 1802111101098. Its totient is φ = 1802111101096.

The previous prime is 1802111101081. The next prime is 1802111101099. The reversal of 1802111101097 is 7901011112081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1185722810281 + 616388290816 = 1088909^2 + 785104^2 .

It is a cyclic number.

It is not a de Polignac number, because 1802111101097 - 2⁴ = 1802111101081 is a prime.

Together with 1802111101099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1802111101099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901055550548 + 901055550549.

It is an arithmetic number, because the mean of its divisors is an integer number (901055550549).

Almost surely, 2^{1802111101097} is an apocalyptic number.

It is an amenable number.

1802111101097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802111101097 is an equidigital number, since it uses as much as digits as its factorization.

1802111101097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 32.

The spelling of 1802111101097 in words is "one trillion, eight hundred two billion, one hundred eleven million, one hundred one thousand, ninety-seven".