20342130042031 has 4 divisors (see below), whose sum is σ = 23248148619472. Its totient is φ = 17436111464592.

The previous prime is 20342130042029. The next prime is 20342130042071. The reversal of 20342130042031 is 13024003124302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20342130042031 - 2¹ = 20342130042029 is a prime.

It is a super-2 number, since 2×20342130042031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20342130041987 and 20342130042005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342130042071) 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, 1453009288710 + ... + 1453009288723.

It is an arithmetic number, because the mean of its divisors is an integer number (5812037154868).

Almost surely, 2^{20342130042031} is an apocalyptic number.

20342130042031 is a deficient number, since it is larger than the sum of its proper divisors (2906018577441).

20342130042031 is an equidigital number, since it uses as much as digits as its factorization.

20342130042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906018577440.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20342130042031 its reverse (13024003124302), we get a palindrome (33366133166333).

The spelling of 20342130042031 in words is "twenty trillion, three hundred forty-two billion, one hundred thirty million, forty-two thousand, thirty-one".