42142103144 has 8 divisors (see below), whose sum is σ = 79016443410. Its totient is φ = 21071051568.

The previous prime is 42142103039. The next prime is 42142103147. The reversal of 42142103144 is 44130124124.

It can be written as a sum of positive squares in only one way, i.e., 35962571044 + 6179532100 = 189638^2 + 78610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42142103147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2633881439 + ... + 2633881454.

Almost surely, 2^42142103144 is an apocalyptic number.

It is an amenable number.

42142103144 is a deficient number, since it is larger than the sum of its proper divisors (36874340266).

42142103144 is a wasteful number, since it uses less digits than its factorization.

42142103144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267762899 (or 5267762895 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 42142103144 its reverse (44130124124), we get a palindrome (86272227268).

The spelling of 42142103144 in words is "forty-two billion, one hundred forty-two million, one hundred three thousand, one hundred forty-four".