203111332243 has 2 divisors, whose sum is σ = 203111332244. Its totient is φ = 203111332242.

The previous prime is 203111332183. The next prime is 203111332301. The reversal of 203111332243 is 342233111302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203111332243 - 2¹⁷ = 203111201171 is a prime.

It is a super-2 number, since 2×203111332243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203111332643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101555666121 + 101555666122.

It is an arithmetic number, because the mean of its divisors is an integer number (101555666122).

Almost surely, 2^203111332243 is an apocalyptic number.

203111332243 is a deficient number, since it is larger than the sum of its proper divisors (1).

203111332243 is an equidigital number, since it uses as much as digits as its factorization.

203111332243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203111332243 its reverse (342233111302), we get a palindrome (545344443545).

The spelling of 203111332243 in words is "two hundred three billion, one hundred eleven million, three hundred thirty-two thousand, two hundred forty-three".