20111704142 has 8 divisors (see below), whose sum is σ = 30203949000. Its totient is φ = 10043721144.

The previous prime is 20111704133. The next prime is 20111704147. The reversal of 20111704142 is 24140711102.

20111704142 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111704147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063392 + ... + 6066707.

It is an arithmetic number, because the mean of its divisors is an integer number (3775493625).

Almost surely, 2^20111704142 is an apocalyptic number.

20111704142 is a deficient number, since it is larger than the sum of its proper divisors (10092244858).

20111704142 is a wasteful number, since it uses less digits than its factorization.

20111704142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130930.

The product of its (nonzero) digits is 448, while the sum is 23.

The spelling of 20111704142 in words is "twenty billion, one hundred eleven million, seven hundred four thousand, one hundred forty-two".