20412223131 has 8 divisors (see below), whose sum is σ = 27248739840. Its totient is φ = 13591927592.

The previous prime is 20412223129. The next prime is 20412223133. The reversal of 20412223131 is 13132221402.

It is an interprime number because it is at equal distance from previous prime (20412223129) and next prime (20412223133).

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 20412223131 - 2¹ = 20412223129 is a prime.

It is a super-2 number, since 2×20412223131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20412223098 and 20412223107.

It is not an unprimeable number, because it can be changed into a prime (20412223133) 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 7 ways as a sum of consecutive naturals, for example, 4052355 + ... + 4057388.

It is an arithmetic number, because the mean of its divisors is an integer number (3406092480).

Almost surely, 2^20412223131 is an apocalyptic number.

20412223131 is a deficient number, since it is larger than the sum of its proper divisors (6836516709).

20412223131 is an equidigital number, since it uses as much as digits as its factorization.

20412223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8110585.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20412223131 its reverse (13132221402), we get a palindrome (33544444533).

The spelling of 20412223131 in words is "twenty billion, four hundred twelve million, two hundred twenty-three thousand, one hundred thirty-one".