442142505131 has 2 divisors, whose sum is σ = 442142505132. Its totient is φ = 442142505130.

The previous prime is 442142505107. The next prime is 442142505151. The reversal of 442142505131 is 131505241244.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442142505131 is a prime.

It is a super-2 number, since 2×442142505131² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (442142505151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221071252565 + 221071252566.

It is an arithmetic number, because the mean of its divisors is an integer number (221071252566).

Almost surely, 2^442142505131 is an apocalyptic number.

442142505131 is a deficient number, since it is larger than the sum of its proper divisors (1).

442142505131 is an equidigital number, since it uses as much as digits as its factorization.

442142505131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 442142505131 its reverse (131505241244), we get a palindrome (573647746375).

The spelling of 442142505131 in words is "four hundred forty-two billion, one hundred forty-two million, five hundred five thousand, one hundred thirty-one".