20315305535342 has 8 divisors (see below), whose sum is σ = 31296551770776. Its totient is φ = 9883121611752.

The previous prime is 20315305535309. The next prime is 20315305535347. The reversal of 20315305535342 is 24353550351302.

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

It is a super-2 number, since 2×20315305535342² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20315305535342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315305535347) 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 3 ways as a sum of consecutive naturals, for example, 137265577868 + ... + 137265578015.

It is an arithmetic number, because the mean of its divisors is an integer number (3912068971347).

Almost surely, 2^{20315305535342} is an apocalyptic number.

20315305535342 is a deficient number, since it is larger than the sum of its proper divisors (10981246235434).

20315305535342 is a wasteful number, since it uses less digits than its factorization.

20315305535342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274531155922.

The product of its (nonzero) digits is 810000, while the sum is 41.

Adding to 20315305535342 its reverse (24353550351302), we get a palindrome (44668855886644).

The spelling of 20315305535342 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, five hundred thirty-five thousand, three hundred forty-two".