1101020002081 has 2 divisors, whose sum is σ = 1101020002082. Its totient is φ = 1101020002080.

The previous prime is 1101020002001. The next prime is 1101020002099. The reversal of 1101020002081 is 1802000201011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1014985726225 + 86034275856 = 1007465^2 + 293316^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101020002081 - 2¹⁹ = 1101019477793 is a prime.

It is a super-2 number, since 2×1101020002081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1101020002001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550510001040 + 550510001041.

It is an arithmetic number, because the mean of its divisors is an integer number (550510001041).

Almost surely, 2^{1101020002081} is an apocalyptic number.

It is an amenable number.

1101020002081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101020002081 is an equidigital number, since it uses as much as digits as its factorization.

1101020002081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1101020002081 its reverse (1802000201011), we get a palindrome (2903020203092).

The spelling of 1101020002081 in words is "one trillion, one hundred one billion, twenty million, two thousand, eighty-one".