42102253040531 has 2 divisors, whose sum is σ = 42102253040532. Its totient is φ = 42102253040530.

The previous prime is 42102253040483. The next prime is 42102253040543. The reversal of 42102253040531 is 13504035220124.

42102253040531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42102253040531 is a prime.

It is a super-2 number, since 2×42102253040531² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42102253000531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051126520265 + 21051126520266.

It is an arithmetic number, because the mean of its divisors is an integer number (21051126520266).

Almost surely, 2^{42102253040531} is an apocalyptic number.

42102253040531 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102253040531 is an equidigital number, since it uses as much as digits as its factorization.

42102253040531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 42102253040531 its reverse (13504035220124), we get a palindrome (55606288260655).

The spelling of 42102253040531 in words is "forty-two trillion, one hundred two billion, two hundred fifty-three million, forty thousand, five hundred thirty-one".