110113103521 has 4 divisors (see below), whose sum is σ = 110138497092. Its totient is φ = 110087709952.

The previous prime is 110113103489. The next prime is 110113103623. The reversal of 110113103521 is 125301311011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15841998225 + 94271105296 = 125865^2 + 307036^2 .

It is a cyclic number.

It is not a de Polignac number, because 110113103521 - 2⁵ = 110113103489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110113103021) 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, 12690280 + ... + 12698953.

It is an arithmetic number, because the mean of its divisors is an integer number (27534624273).

Almost surely, 2^110113103521 is an apocalyptic number.

It is an amenable number.

110113103521 is a deficient number, since it is larger than the sum of its proper divisors (25393571).

110113103521 is an equidigital number, since it uses as much as digits as its factorization.

110113103521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25393570.

The product of its (nonzero) digits is 90, while the sum is 19.

Adding to 110113103521 its reverse (125301311011), we get a palindrome (235414414532).

The spelling of 110113103521 in words is "one hundred ten billion, one hundred thirteen million, one hundred three thousand, five hundred twenty-one".