42120142203 has 16 divisors (see below), whose sum is σ = 57188851200. Its totient is φ = 27569736480.

The previous prime is 42120142171. The next prime is 42120142243. The reversal of 42120142203 is 30224102124.

It is not a de Polignac number, because 42120142203 - 2⁵ = 42120142171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42120142203.

It is not an unprimeable number, because it can be changed into a prime (42120142243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454008 + ... + 538853.

It is an arithmetic number, because the mean of its divisors is an integer number (3574303200).

Almost surely, 2^42120142203 is an apocalyptic number.

42120142203 is a deficient number, since it is larger than the sum of its proper divisors (15068708997).

42120142203 is a wasteful number, since it uses less digits than its factorization.

42120142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993122.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 42120142203 its reverse (30224102124), we get a palindrome (72344244327).

The spelling of 42120142203 in words is "forty-two billion, one hundred twenty million, one hundred forty-two thousand, two hundred three".