21058096237 has 4 divisors (see below), whose sum is σ = 21737389696. Its totient is φ = 20378802780.

The previous prime is 21058096229. The next prime is 21058096253. The reversal of 21058096237 is 73269085012.

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 a cyclic number.

It is not a de Polignac number, because 21058096237 - 2³ = 21058096229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21058096193 and 21058096202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21058096217) 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, 339646683 + ... + 339646744.

It is an arithmetic number, because the mean of its divisors is an integer number (5434347424).

Almost surely, 2^21058096237 is an apocalyptic number.

It is an amenable number.

21058096237 is a deficient number, since it is larger than the sum of its proper divisors (679293459).

21058096237 is an equidigital number, since it uses as much as digits as its factorization.

21058096237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679293458.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 21058096237 in words is "twenty-one billion, fifty-eight million, ninety-six thousand, two hundred thirty-seven".