20310556241 has 4 divisors (see below), whose sum is σ = 20313954672. Its totient is φ = 20307157812.

The previous prime is 20310556237. The next prime is 20310556243. The reversal of 20310556241 is 14265501302.

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 20310556241 - 2² = 20310556237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310556243) 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 3 ways as a sum of consecutive naturals, for example, 1690235 + ... + 1702208.

It is an arithmetic number, because the mean of its divisors is an integer number (5078488668).

Almost surely, 2^20310556241 is an apocalyptic number.

It is an amenable number.

20310556241 is a deficient number, since it is larger than the sum of its proper divisors (3398431).

20310556241 is an equidigital number, since it uses as much as digits as its factorization.

20310556241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398430.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 20310556241 in words is "twenty billion, three hundred ten million, five hundred fifty-six thousand, two hundred forty-one".