20411142243 has 8 divisors (see below), whose sum is σ = 27219901968. Its totient is φ = 13604905344.

The previous prime is 20411142211. The next prime is 20411142263. The reversal of 20411142243 is 34224111402.

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

It is not a de Polignac number, because 20411142243 - 2⁵ = 20411142211 is a prime.

It is a super-2 number, since 2×20411142243² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20411142203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611746 + ... + 644247.

It is an arithmetic number, because the mean of its divisors is an integer number (3402487746).

Almost surely, 2^20411142243 is an apocalyptic number.

20411142243 is a deficient number, since it is larger than the sum of its proper divisors (6808759725).

20411142243 is a wasteful number, since it uses less digits than its factorization.

20411142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261413.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20411142243 its reverse (34224111402), we get a palindrome (54635253645).

The spelling of 20411142243 in words is "twenty billion, four hundred eleven million, one hundred forty-two thousand, two hundred forty-three".