385132042831 has 2 divisors, whose sum is σ = 385132042832. Its totient is φ = 385132042830.

The previous prime is 385132042817. The next prime is 385132042849. The reversal of 385132042831 is 138240231583.

It is a weak prime.

It is an emirp because it is prime and its reverse (138240231583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385132042831 - 2⁹ = 385132042319 is a prime.

It is a super-2 number, since 2×385132042831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385132043831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192566021415 + 192566021416.

It is an arithmetic number, because the mean of its divisors is an integer number (192566021416).

Almost surely, 2^385132042831 is an apocalyptic number.

385132042831 is a deficient number, since it is larger than the sum of its proper divisors (1).

385132042831 is an equidigital number, since it uses as much as digits as its factorization.

385132042831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 385132042831 in words is "three hundred eighty-five billion, one hundred thirty-two million, forty-two thousand, eight hundred thirty-one".