42112144042 has 16 divisors (see below), whose sum is σ = 65351282760. Its totient is φ = 20328491008.

The previous prime is 42112143991. The next prime is 42112144043. The reversal of 42112144042 is 24044121124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41395564681 + 716579361 = 203459^2 + 26769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42112143998 and 42112144016.

It is not an unprimeable number, because it can be changed into a prime (42112144043) 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, 1504398 + ... + 1532134.

Almost surely, 2^42112144042 is an apocalyptic number.

42112144042 is a deficient number, since it is larger than the sum of its proper divisors (23239138718).

42112144042 is a wasteful number, since it uses less digits than its factorization.

42112144042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53945.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 42112144042 its reverse (24044121124), we get a palindrome (66156265166).

The spelling of 42112144042 in words is "forty-two billion, one hundred twelve million, one hundred forty-four thousand, forty-two".