110311623521 has 4 divisors (see below), whose sum is σ = 120339952944. Its totient is φ = 100283294100.

The previous prime is 110311623517. The next prime is 110311623559. The reversal of 110311623521 is 125326113011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 125326113011 = 11 ⋅11393283001.

It is not a de Polignac number, because 110311623521 - 2² = 110311623517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (110311623421) 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, 5014164695 + ... + 5014164716.

It is an arithmetic number, because the mean of its divisors is an integer number (30084988236).

Almost surely, 2^110311623521 is an apocalyptic number.

110311623521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110311623521 is a deficient number, since it is larger than the sum of its proper divisors (10028329423).

110311623521 is a wasteful number, since it uses less digits than its factorization.

110311623521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028329422.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 110311623521 its reverse (125326113011), we get a palindrome (235637736532).

The spelling of 110311623521 in words is "one hundred ten billion, three hundred eleven million, six hundred twenty-three thousand, five hundred twenty-one".