113122251 has 20 divisors (see below), whose sum is σ = 184348824. Its totient is φ = 68558400.

The previous prime is 113122171. The next prime is 113122253. The reversal of 113122251 is 152221311.

It is not a de Polignac number, because 113122251 - 2⁷ = 113122123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113122253) 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 19 ways as a sum of consecutive naturals, for example, 62590 + ... + 64371.

Almost surely, 2^113122251 is an apocalyptic number.

113122251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113122251 is a deficient number, since it is larger than the sum of its proper divisors (71226573).

113122251 is a wasteful number, since it uses less digits than its factorization.

113122251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126984 (or 126975 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 113122251 is about 10635.8944616802. The cubic root of 113122251 is about 483.6330959623.

Adding to 113122251 its reverse (152221311), we get a palindrome (265343562).

The spelling of 113122251 in words is "one hundred thirteen million, one hundred twenty-two thousand, two hundred fifty-one".