112571257421 has 16 divisors (see below), whose sum is σ = 130671688320. Its totient is φ = 94985088000.

The previous prime is 112571257411. The next prime is 112571257423. The reversal of 112571257421 is 124752175211.

It is a cyclic number.

It is not a de Polignac number, because 112571257421 - 2¹⁰ = 112571256397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112571257423) 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 15 ways as a sum of consecutive naturals, for example, 256580 + ... + 539421.

It is an arithmetic number, because the mean of its divisors is an integer number (8166980520).

Almost surely, 2^112571257421 is an apocalyptic number.

It is an amenable number.

112571257421 is a deficient number, since it is larger than the sum of its proper divisors (18100430899).

112571257421 is an equidigital number, since it uses as much as digits as its factorization.

112571257421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796324.

The product of its digits is 39200, while the sum is 38.

The spelling of 112571257421 in words is "one hundred twelve billion, five hundred seventy-one million, two hundred fifty-seven thousand, four hundred twenty-one".