112155321 has 4 divisors (see below), whose sum is σ = 149540432. Its totient is φ = 74770212.

The previous prime is 112155317. The next prime is 112155331. The reversal of 112155321 is 123551211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 112155321 - 2² = 112155317 is a prime.

It is a super-2 number, since 2×112155321² = 25157632057226082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112155311) 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, 18692551 + ... + 18692556.

It is an arithmetic number, because the mean of its divisors is an integer number (37385108).

Almost surely, 2^112155321 is an apocalyptic number.

It is an amenable number.

112155321 is a deficient number, since it is larger than the sum of its proper divisors (37385111).

112155321 is an equidigital number, since it uses as much as digits as its factorization.

112155321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37385110.

The product of its digits is 300, while the sum is 21.

The square root of 112155321 is about 10590.3409293563. The cubic root of 112155321 is about 482.2511747356.

The spelling of 112155321 in words is "one hundred twelve million, one hundred fifty-five thousand, three hundred twenty-one".