110404435323421 has 2 divisors, whose sum is σ = 110404435323422. Its totient is φ = 110404435323420.

The previous prime is 110404435323407. The next prime is 110404435323431. The reversal of 110404435323421 is 124323534404011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60051418011225 + 50353017312196 = 7749285^2 + 7095986^2 .

It is an emirp because it is prime and its reverse (124323534404011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110404435323421 - 2¹⁷ = 110404435192349 is a prime.

It is a super-2 number, since 2×110404435323421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110404435323431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55202217661710 + 55202217661711.

It is an arithmetic number, because the mean of its divisors is an integer number (55202217661711).

Almost surely, 2^{110404435323421} is an apocalyptic number.

It is an amenable number.

110404435323421 is a deficient number, since it is larger than the sum of its proper divisors (1).

110404435323421 is an equidigital number, since it uses as much as digits as its factorization.

110404435323421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 110404435323421 its reverse (124323534404011), we get a palindrome (234727969727432).

The spelling of 110404435323421 in words is "one hundred ten trillion, four hundred four billion, four hundred thirty-five million, three hundred twenty-three thousand, four hundred twenty-one".