20444224311 has 160 divisors (see below), whose sum is σ = 37173616128. Its totient is φ = 10953895680.

The previous prime is 20444224301. The next prime is 20444224313. The reversal of 20444224311 is 11342244402.

20444224311 is a `hidden beast` number, since 204 + 4 + 4 + 22 + 431 + 1 = 666.

It is not a de Polignac number, because 20444224311 - 2¹¹ = 20444222263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20444224313) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 118174621 + ... + 118174793.

Almost surely, 2^20444224311 is an apocalyptic number.

20444224311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20444224311 is a deficient number, since it is larger than the sum of its proper divisors (16729391817).

20444224311 is a wasteful number, since it uses less digits than its factorization.

20444224311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 20444224311 its reverse (11342244402), we get a palindrome (31786468713).

The spelling of 20444224311 in words is "twenty billion, four hundred forty-four million, two hundred twenty-four thousand, three hundred eleven".