110513421520 has 40 divisors (see below), whose sum is σ = 259438323456. Its totient is φ = 43776187008.

The previous prime is 110513421503. The next prime is 110513421523. The reversal of 110513421520 is 25124315011.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×110513421520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110513421523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6697672 + ... + 6714151.

Almost surely, 2^110513421520 is an apocalyptic number.

110513421520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110513421520 is an abundant number, since it is smaller than the sum of its proper divisors (148924901936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110513421520 is a wasteful number, since it uses less digits than its factorization.

110513421520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13411939 (or 13411933 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 110513421520 its reverse (25124315011), we get a palindrome (135637736531).

The spelling of 110513421520 in words is "one hundred ten billion, five hundred thirteen million, four hundred twenty-one thousand, five hundred twenty".