142102120039 has 8 divisors (see below), whose sum is σ = 155184202368. Its totient is φ = 129047322360.

The previous prime is 142102120021. The next prime is 142102120051. The reversal of 142102120039 is 930021201241.

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

It is not a de Polignac number, because 142102120039 - 2⁵ = 142102120007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142102119995 and 142102120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142102120019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6810267 + ... + 6831100.

It is an arithmetic number, because the mean of its divisors is an integer number (19398025296).

Almost surely, 2^142102120039 is an apocalyptic number.

142102120039 is a deficient number, since it is larger than the sum of its proper divisors (13082082329).

142102120039 is a wasteful number, since it uses less digits than its factorization.

142102120039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13642325.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 142102120039 in words is "one hundred forty-two billion, one hundred two million, one hundred twenty thousand, thirty-nine".