20355124420282 has 8 divisors (see below), whose sum is σ = 30532810562676. Its totient is φ = 10177520899392.

The previous prime is 20355124420277. The next prime is 20355124420283. The reversal of 20355124420282 is 28202442155302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20347397834481 + 7726585801 = 4510809^2 + 87901^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20355124420283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20035743 + ... + 21027154.

Almost surely, 2^{20355124420282} is an apocalyptic number.

20355124420282 is a deficient number, since it is larger than the sum of its proper divisors (10177686142394).

20355124420282 is a wasteful number, since it uses less digits than its factorization.

20355124420282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41310752.

The product of its (nonzero) digits is 307200, while the sum is 40.

Adding to 20355124420282 its reverse (28202442155302), we get a palindrome (48557566575584).

The spelling of 20355124420282 in words is "twenty trillion, three hundred fifty-five billion, one hundred twenty-four million, four hundred twenty thousand, two hundred eighty-two".