110321442521 has 4 divisors (see below), whose sum is σ = 110428240692. Its totient is φ = 110214644352.

The previous prime is 110321442499. The next prime is 110321442559. The reversal of 110321442521 is 125244123011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125244123011 = 7 ⋅17892017573.

It can be written as a sum of positive squares in 2 ways, for example, as 103835395225 + 6486047296 = 322235^2 + 80536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110321442521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110323442521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53397536 + ... + 53399601.

It is an arithmetic number, because the mean of its divisors is an integer number (27607060173).

Almost surely, 2^110321442521 is an apocalyptic number.

It is an amenable number.

110321442521 is a deficient number, since it is larger than the sum of its proper divisors (106798171).

110321442521 is a wasteful number, since it uses less digits than its factorization.

110321442521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106798170.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 110321442521 its reverse (125244123011), we get a palindrome (235565565532).

The spelling of 110321442521 in words is "one hundred ten billion, three hundred twenty-one million, four hundred forty-two thousand, five hundred twenty-one".