20411343231 has 8 divisors (see below), whose sum is σ = 27217510320. Its totient is φ = 13606369152.

The previous prime is 20411343229. The next prime is 20411343241. The reversal of 20411343231 is 13234311402.

It is a happy number.

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

It is not a de Polignac number, because 20411343231 - 2¹ = 20411343229 is a prime.

It is a super-2 number, since 2×20411343231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411343241) 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, 257536 + ... + 327333.

It is an arithmetic number, because the mean of its divisors is an integer number (3402188790).

Almost surely, 2^20411343231 is an apocalyptic number.

20411343231 is a deficient number, since it is larger than the sum of its proper divisors (6806167089).

20411343231 is a wasteful number, since it uses less digits than its factorization.

20411343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596505.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20411343231 its reverse (13234311402), we get a palindrome (33645654633).

The spelling of 20411343231 in words is "twenty billion, four hundred eleven million, three hundred forty-three thousand, two hundred thirty-one".