112120251 has 4 divisors (see below), whose sum is σ = 149493672. Its totient is φ = 74746832.

The previous prime is 112120241. The next prime is 112120277. The reversal of 112120251 is 152021211.

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

It is a cyclic number.

It is not a de Polignac number, because 112120251 - 2⁶ = 112120187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112120251.

It is not an unprimeable number, because it can be changed into a prime (112120241) 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 3 ways as a sum of consecutive naturals, for example, 18686706 + ... + 18686711.

It is an arithmetic number, because the mean of its divisors is an integer number (37373418).

Almost surely, 2^112120251 is an apocalyptic number.

112120251 is a deficient number, since it is larger than the sum of its proper divisors (37373421).

112120251 is an equidigital number, since it uses as much as digits as its factorization.

112120251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37373420.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 112120251 is about 10588.6850458402. The cubic root of 112120251 is about 482.2009042368.

Adding to 112120251 its reverse (152021211), we get a palindrome (264141462).

It can be divided in two parts, 1121202 and 51, that added together give a triangular number (1121253 = T₁₄₉₇).

The spelling of 112120251 in words is "one hundred twelve million, one hundred twenty thousand, two hundred fifty-one".