42139304041 has 2 divisors, whose sum is σ = 42139304042. Its totient is φ = 42139304040.

The previous prime is 42139304027. The next prime is 42139304113. The reversal of 42139304041 is 14040393124.

42139304041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38023440016 + 4115864025 = 194996^2 + 64155^2 .

It is a cyclic number.

It is not a de Polignac number, because 42139304041 - 2²⁷ = 42005086313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42139303994 and 42139304012.

It is not a weakly prime, because it can be changed into another prime (42139305041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21069652020 + 21069652021.

It is an arithmetic number, because the mean of its divisors is an integer number (21069652021).

Almost surely, 2^42139304041 is an apocalyptic number.

It is an amenable number.

42139304041 is a deficient number, since it is larger than the sum of its proper divisors (1).

42139304041 is an equidigital number, since it uses as much as digits as its factorization.

42139304041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 42139304041 its reverse (14040393124), we get a palindrome (56179697165).

The spelling of 42139304041 in words is "forty-two billion, one hundred thirty-nine million, three hundred four thousand, forty-one".