20085703142 has 32 divisors (see below), whose sum is σ = 31366742400. Its totient is φ = 9639377280.

The previous prime is 20085703129. The next prime is 20085703207. The reversal of 20085703142 is 24130758002.

It is a junction number, because it is equal to n+sod(n) for n = 20085703099 and 20085703108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1996148 + ... + 2006184.

It is an arithmetic number, because the mean of its divisors is an integer number (980210700).

Almost surely, 2^20085703142 is an apocalyptic number.

20085703142 is a deficient number, since it is larger than the sum of its proper divisors (11281039258).

20085703142 is a wasteful number, since it uses less digits than its factorization.

20085703142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10496.

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 20085703142 in words is "twenty billion, eighty-five million, seven hundred three thousand, one hundred forty-two".