11255730421 has 8 divisors (see below), whose sum is σ = 12133900800. Its totient is φ = 10379323632.

The previous prime is 11255730391. The next prime is 11255730427. The reversal of 11255730421 is 12403755211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11255730421 - 2⁵ = 11255730389 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 (11255730427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427621 + ... + 453178.

It is an arithmetic number, because the mean of its divisors is an integer number (1516737600).

Almost surely, 2^11255730421 is an apocalyptic number.

It is an amenable number.

11255730421 is a deficient number, since it is larger than the sum of its proper divisors (878170379).

11255730421 is an equidigital number, since it uses as much as digits as its factorization.

11255730421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881795.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 11255730421 in words is "eleven billion, two hundred fifty-five million, seven hundred thirty thousand, four hundred twenty-one".