112021013 has 4 divisors (see below), whose sum is σ = 120638028. Its totient is φ = 103404000.

The previous prime is 112021003. The next prime is 112021027. The reversal of 112021013 is 310120211.

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 66552964 + 45468049 = 8158^2 + 6743^2 .

It is a cyclic number.

It is not a de Polignac number, because 112021013 - 2²² = 107826709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112020985 and 112021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021003) 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, 4308488 + ... + 4308513.

It is an arithmetic number, because the mean of its divisors is an integer number (30159507).

Almost surely, 2^112021013 is an apocalyptic number.

112021013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

112021013 is a deficient number, since it is larger than the sum of its proper divisors (8617015).

112021013 is an equidigital number, since it uses as much as digits as its factorization.

112021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617014.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 112021013 is about 10583.9979686317. The cubic root of 112021013 is about 482.0585963782.

Adding to 112021013 its reverse (310120211), we get a palindrome (422141224).

The spelling of 112021013 in words is "one hundred twelve million, twenty-one thousand, thirteen".