99020010011161 has 2 divisors, whose sum is σ = 99020010011162. Its totient is φ = 99020010011160.

The previous prime is 99020010011159. The next prime is 99020010011173. The reversal of 99020010011161 is 16111001002099.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69946777369561 + 29073232641600 = 8363419^2 + 5391960^2 .

It is a cyclic number.

It is not a de Polignac number, because 99020010011161 - 2¹ = 99020010011159 is a prime.

It is a super-2 number, since 2×99020010011161² (a number of 29 digits) contains 22 as substring.

Together with 99020010011159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99020010011761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49510005005580 + 49510005005581.

It is an arithmetic number, because the mean of its divisors is an integer number (49510005005581).

Almost surely, 2^{99020010011161} is an apocalyptic number.

It is an amenable number.

99020010011161 is a deficient number, since it is larger than the sum of its proper divisors (1).

99020010011161 is an equidigital number, since it uses as much as digits as its factorization.

99020010011161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 99020010011161 in words is "ninety-nine trillion, twenty billion, ten million, eleven thousand, one hundred sixty-one".