42141405321551 has 2 divisors, whose sum is σ = 42141405321552. Its totient is φ = 42141405321550.

The previous prime is 42141405321539. The next prime is 42141405321581. The reversal of 42141405321551 is 15512350414124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42141405321551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42141405321581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21070702660775 + 21070702660776.

It is an arithmetic number, because the mean of its divisors is an integer number (21070702660776).

Almost surely, 2^{42141405321551} is an apocalyptic number.

42141405321551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42141405321551 is an equidigital number, since it uses as much as digits as its factorization.

42141405321551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 42141405321551 its reverse (15512350414124), we get a palindrome (57653755735675).

The spelling of 42141405321551 in words is "forty-two trillion, one hundred forty-one billion, four hundred five million, three hundred twenty-one thousand, five hundred fifty-one".