20342043131 has 8 divisors (see below), whose sum is σ = 21670662720. Its totient is φ = 19039222152.

The previous prime is 20342043101. The next prime is 20342043167. The reversal of 20342043131 is 13134024302.

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 20342043131 - 2¹⁰ = 20342042107 is a prime.

It is a super-2 number, since 2×20342043131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20342043097 and 20342043106.

It is not an unprimeable number, because it can be changed into a prime (20342043101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6448025 + ... + 6451178.

It is an arithmetic number, because the mean of its divisors is an integer number (2708832840).

Almost surely, 2^20342043131 is an apocalyptic number.

20342043131 is a deficient number, since it is larger than the sum of its proper divisors (1328619589).

20342043131 is a wasteful number, since it uses less digits than its factorization.

20342043131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899305.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20342043131 its reverse (13134024302), we get a palindrome (33476067433).

The spelling of 20342043131 in words is "twenty billion, three hundred forty-two million, forty-three thousand, one hundred thirty-one".