20115435235142 has 8 divisors (see below), whose sum is σ = 32494164610656. Its totient is φ = 9284047031592.

The previous prime is 20115435235097. The next prime is 20115435235171. The reversal of 20115435235142 is 24153253451102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20115435235096 and 20115435235105.

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, 386835292958 + ... + 386835293009.

It is an arithmetic number, because the mean of its divisors is an integer number (4061770576332).

Almost surely, 2^{20115435235142} is an apocalyptic number.

20115435235142 is a deficient number, since it is larger than the sum of its proper divisors (12378729375514).

20115435235142 is a wasteful number, since it uses less digits than its factorization.

20115435235142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773670585982.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 20115435235142 its reverse (24153253451102), we get a palindrome (44268688686244).

The spelling of 20115435235142 in words is "twenty trillion, one hundred fifteen billion, four hundred thirty-five million, two hundred thirty-five thousand, one hundred forty-two".