113212126 has 4 divisors (see below), whose sum is σ = 169818192. Its totient is φ = 56606062.

The previous prime is 113212109. The next prime is 113212133. The reversal of 113212126 is 621212311.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28303030 + ... + 28303033.

It is an arithmetic number, because the mean of its divisors is an integer number (42454548).

Almost surely, 2^113212126 is an apocalyptic number.

113212126 is a deficient number, since it is larger than the sum of its proper divisors (56606066).

113212126 is an equidigital number, since it uses as much as digits as its factorization.

113212126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56606065.

The product of its digits is 144, while the sum is 19.

The square root of 113212126 is about 10640.1187023454. The cubic root of 113212126 is about 483.7611433266.

Adding to 113212126 its reverse (621212311), we get a palindrome (734424437).

The spelling of 113212126 in words is "one hundred thirteen million, two hundred twelve thousand, one hundred twenty-six".