10111230321161 has 2 divisors, whose sum is σ = 10111230321162. Its totient is φ = 10111230321160.

The previous prime is 10111230321151. The next prime is 10111230321221. The reversal of 10111230321161 is 16112303211101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9243612589561 + 867617731600 = 3040331^2 + 931460^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111230321161 - 2¹⁰ = 10111230320137 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111230321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055615160580 + 5055615160581.

It is an arithmetic number, because the mean of its divisors is an integer number (5055615160581).

Almost surely, 2^{10111230321161} is an apocalyptic number.

It is an amenable number.

10111230321161 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111230321161 is an equidigital number, since it uses as much as digits as its factorization.

10111230321161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 10111230321161 its reverse (16112303211101), we get a palindrome (26223533532262).

The spelling of 10111230321161 in words is "ten trillion, one hundred eleven billion, two hundred thirty million, three hundred twenty-one thousand, one hundred sixty-one".