113213451 has 32 divisors (see below), whose sum is σ = 169593088. Its totient is φ = 66718080.

The previous prime is 113213431. The next prime is 113213473. The reversal of 113213451 is 154312311.

It is not a de Polignac number, because 113213451 - 2⁷ = 113213323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113213431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96096 + ... + 97266.

It is an arithmetic number, because the mean of its divisors is an integer number (5299784).

Almost surely, 2^113213451 is an apocalyptic number.

113213451 is a deficient number, since it is larger than the sum of its proper divisors (56379637).

113213451 is a wasteful number, since it uses less digits than its factorization.

113213451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291.

The product of its digits is 360, while the sum is 21.

The square root of 113213451 is about 10640.1809665062. The cubic root of 113213451 is about 483.7630305833.

Adding to 113213451 its reverse (154312311), we get a palindrome (267525762).

The spelling of 113213451 in words is "one hundred thirteen million, two hundred thirteen thousand, four hundred fifty-one".