113203011 has 16 divisors (see below), whose sum is σ = 152821760. Its totient is φ = 74532960.

The previous prime is 113202989. The next prime is 113203019. The reversal of 113203011 is 110302311.

It is not a de Polignac number, because 113203011 - 2¹⁴ = 113186627 is a prime.

It is a super-2 number, since 2×113203011² = 25629843398932242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113203019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87870 + ... + 89148.

It is an arithmetic number, because the mean of its divisors is an integer number (9551360).

Almost surely, 2^113203011 is an apocalyptic number.

113203011 is a deficient number, since it is larger than the sum of its proper divisors (39618749).

113203011 is a wasteful number, since it uses less digits than its factorization.

113203011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626.

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

The square root of 113203011 is about 10639.6903620359. The cubic root of 113203011 is about 483.7481600261.

Adding to 113203011 its reverse (110302311), we get a palindrome (223505322).

The spelling of 113203011 in words is "one hundred thirteen million, two hundred three thousand, eleven".