1020140010242 has 8 divisors (see below), whose sum is σ = 1533276570000. Its totient is φ = 509047820244.

The previous prime is 1020140010203. The next prime is 1020140010259. The reversal of 1020140010242 is 2420100410201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020140010242.

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, 511091192 + ... + 511093187.

It is an arithmetic number, because the mean of its divisors is an integer number (191659571250).

Almost surely, 2^{1020140010242} is an apocalyptic number.

1020140010242 is a deficient number, since it is larger than the sum of its proper divisors (513136559758).

1020140010242 is a wasteful number, since it uses less digits than its factorization.

1020140010242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022184880.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1020140010242 its reverse (2420100410201), we get a palindrome (3440240420443).

The spelling of 1020140010242 in words is "one trillion, twenty billion, one hundred forty million, ten thousand, two hundred forty-two".