113431206 has 16 divisors (see below), whose sum is σ = 259271424. Its totient is φ = 32408904.

The previous prime is 113431189. The next prime is 113431231. The reversal of 113431206 is 602134311.

It is a super-2 number, since 2×113431206² = 25733276989228872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1350330 + ... + 1350413.

It is an arithmetic number, because the mean of its divisors is an integer number (16204464).

Almost surely, 2^113431206 is an apocalyptic number.

113431206 is an abundant number, since it is smaller than the sum of its proper divisors (145840218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113431206 is a wasteful number, since it uses less digits than its factorization.

113431206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700755.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 113431206 is about 10650.4087245514. The cubic root of 113431206 is about 484.0729889014.

Adding to 113431206 its reverse (602134311), we get a palindrome (715565517).

The spelling of 113431206 in words is "one hundred thirteen million, four hundred thirty-one thousand, two hundred six".