203213144314181 has 2 divisors, whose sum is σ = 203213144314182. Its totient is φ = 203213144314180.

The previous prime is 203213144314111. The next prime is 203213144314183. The reversal of 203213144314181 is 181413441312302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202566191130625 + 646953183556 = 14232575^2 + 804334^2 .

It is a cyclic number.

It is not a de Polignac number, because 203213144314181 - 2³⁴ = 203195964444997 is a prime.

It is a super-2 number, since 2×203213144314181² (a number of 29 digits) contains 22 as substring.

Together with 203213144314183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203213144314183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101606572157090 + 101606572157091.

It is an arithmetic number, because the mean of its divisors is an integer number (101606572157091).

Almost surely, 2^{203213144314181} is an apocalyptic number.

It is an amenable number.

203213144314181 is a deficient number, since it is larger than the sum of its proper divisors (1).

203213144314181 is an equidigital number, since it uses as much as digits as its factorization.

203213144314181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

Adding to 203213144314181 its reverse (181413441312302), we get a palindrome (384626585626483).

The spelling of 203213144314181 in words is "two hundred three trillion, two hundred thirteen billion, one hundred forty-four million, three hundred fourteen thousand, one hundred eighty-one".