110331432161 has 2 divisors, whose sum is σ = 110331432162. Its totient is φ = 110331432160.

The previous prime is 110331432121. The next prime is 110331432217. The reversal of 110331432161 is 161234133011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108689561761 + 1641870400 = 329681^2 + 40520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110331432161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110331432161.

It is not a weakly prime, because it can be changed into another prime (110331432121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55165716080 + 55165716081.

It is an arithmetic number, because the mean of its divisors is an integer number (55165716081).

Almost surely, 2^110331432161 is an apocalyptic number.

It is an amenable number.

110331432161 is a deficient number, since it is larger than the sum of its proper divisors (1).

110331432161 is an equidigital number, since it uses as much as digits as its factorization.

110331432161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 110331432161 its reverse (161234133011), we get a palindrome (271565565172).

The spelling of 110331432161 in words is "one hundred ten billion, three hundred thirty-one million, four hundred thirty-two thousand, one hundred sixty-one".