112403570521 has 4 divisors (see below), whose sum is σ = 122622076944. Its totient is φ = 102185064100.

The previous prime is 112403570509. The next prime is 112403570567. The reversal of 112403570521 is 125075304211.

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.

It is a cyclic number.

It is not a de Polignac number, because 112403570521 - 2⁹ = 112403570009 is a prime.

It is a super-2 number, since 2×112403570521² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112403570501) 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, 5109253195 + ... + 5109253216.

It is an arithmetic number, because the mean of its divisors is an integer number (30655519236).

Almost surely, 2^112403570521 is an apocalyptic number.

112403570521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112403570521 is a deficient number, since it is larger than the sum of its proper divisors (10218506423).

112403570521 is a wasteful number, since it uses less digits than its factorization.

112403570521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10218506422.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 112403570521 its reverse (125075304211), we get a palindrome (237478874732).

The spelling of 112403570521 in words is "one hundred twelve billion, four hundred three million, five hundred seventy thousand, five hundred twenty-one".