20346642331342 has 32 divisors (see below), whose sum is σ = 31464034447104. Its totient is φ = 9863890344000.

The previous prime is 20346642331339. The next prime is 20346642331343. The reversal of 20346642331342 is 24313324664302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346642331343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3938713 + ... + 7497115.

It is an arithmetic number, because the mean of its divisors is an integer number (983251076472).

Almost surely, 2^{20346642331342} is an apocalyptic number.

20346642331342 is a deficient number, since it is larger than the sum of its proper divisors (11117392115762).

20346642331342 is a wasteful number, since it uses less digits than its factorization.

20346642331342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559144.

The product of its (nonzero) digits is 1492992, while the sum is 43.

Adding to 20346642331342 its reverse (24313324664302), we get a palindrome (44659966995644).

The spelling of 20346642331342 in words is "twenty trillion, three hundred forty-six billion, six hundred forty-two million, three hundred thirty-one thousand, three hundred forty-two".