1002542386831 has 2 divisors, whose sum is σ = 1002542386832. Its totient is φ = 1002542386830.

The previous prime is 1002542386777. The next prime is 1002542386921. The reversal of 1002542386831 is 1386832452001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002542386831 - 2²³ = 1002533998223 is a prime.

It is a super-2 number, since 2×1002542386831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002542386931) 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, 501271193415 + 501271193416.

It is an arithmetic number, because the mean of its divisors is an integer number (501271193416).

Almost surely, 2^{1002542386831} is an apocalyptic number.

1002542386831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002542386831 is an equidigital number, since it uses as much as digits as its factorization.

1002542386831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 1002542386831 in words is "one trillion, two billion, five hundred forty-two million, three hundred eighty-six thousand, eight hundred thirty-one".