2185203852031 has 2 divisors, whose sum is σ = 2185203852032. Its totient is φ = 2185203852030.

The previous prime is 2185203852023. The next prime is 2185203852067. The reversal of 2185203852031 is 1302583025812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2185203852031 - 2³ = 2185203852023 is a prime.

It is a super-2 number, since 2×2185203852031² (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 (2185203858031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092601926015 + 1092601926016.

It is an arithmetic number, because the mean of its divisors is an integer number (1092601926016).

Almost surely, 2^{2185203852031} is an apocalyptic number.

2185203852031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185203852031 is an equidigital number, since it uses as much as digits as its factorization.

2185203852031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 40.

Adding to 2185203852031 its reverse (1302583025812), we get a palindrome (3487786877843).

The spelling of 2185203852031 in words is "two trillion, one hundred eighty-five billion, two hundred three million, eight hundred fifty-two thousand, thirty-one".