20310042503542 has 8 divisors (see below), whose sum is σ = 33234615005832. Its totient is φ = 9231837501600.

The previous prime is 20310042503539. The next prime is 20310042503557. The reversal of 20310042503542 is 24530524001302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461591875059 + ... + 461591875102.

It is an arithmetic number, because the mean of its divisors is an integer number (4154326875729).

Almost surely, 2^{20310042503542} is an apocalyptic number.

20310042503542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20310042503542 is a deficient number, since it is larger than the sum of its proper divisors (12924572502290).

20310042503542 is a wasteful number, since it uses less digits than its factorization.

20310042503542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923183750174.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20310042503542 its reverse (24530524001302), we get a palindrome (44840566504844).

The spelling of 20310042503542 in words is "twenty trillion, three hundred ten billion, forty-two million, five hundred three thousand, five hundred forty-two".