113103021 has 8 divisors (see below), whose sum is σ = 152621280. Its totient is φ = 74493392.

The previous prime is 113103013. The next prime is 113103037. The reversal of 113103021 is 120301311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113103021 - 2³ = 113103013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113102988 and 113103006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113107021) 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, 226866 + ... + 227363.

It is an arithmetic number, because the mean of its divisors is an integer number (19077660).

Almost surely, 2^113103021 is an apocalyptic number.

It is an amenable number.

113103021 is a deficient number, since it is larger than the sum of its proper divisors (39518259).

113103021 is an equidigital number, since it uses as much as digits as its factorization.

113103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454315.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 113103021 is about 10634.9904090225. The cubic root of 113103021 is about 483.6056896492.

Adding to 113103021 its reverse (120301311), we get a palindrome (233404332).

The spelling of 113103021 in words is "one hundred thirteen million, one hundred three thousand, twenty-one".