1002110001161 has 2 divisors, whose sum is σ = 1002110001162. Its totient is φ = 1002110001160.

The previous prime is 1002110001157. The next prime is 1002110001203. The reversal of 1002110001161 is 1611000112001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643093328761 + 359016672400 = 801931^2 + 599180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002110001161 - 2² = 1002110001157 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002110001131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501055000580 + 501055000581.

It is an arithmetic number, because the mean of its divisors is an integer number (501055000581).

Almost surely, 2^{1002110001161} is an apocalyptic number.

It is an amenable number.

1002110001161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002110001161 is an equidigital number, since it uses as much as digits as its factorization.

1002110001161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1002110001161 its reverse (1611000112001), we get a palindrome (2613110113162).

The spelling of 1002110001161 in words is "one trillion, two billion, one hundred ten million, one thousand, one hundred sixty-one".