203113012223111 has 2 divisors, whose sum is σ = 203113012223112. Its totient is φ = 203113012223110.

The previous prime is 203113012223087. The next prime is 203113012223141. The reversal of 203113012223111 is 111322210311302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203113012223111 - 2⁶ = 203113012223047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203113012223141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556506111555 + 101556506111556.

It is an arithmetic number, because the mean of its divisors is an integer number (101556506111556).

Almost surely, 2^{203113012223111} is an apocalyptic number.

203113012223111 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113012223111 is an equidigital number, since it uses as much as digits as its factorization.

203113012223111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 203113012223111 its reverse (111322210311302), we get a palindrome (314435222534413).

The spelling of 203113012223111 in words is "two hundred three trillion, one hundred thirteen billion, twelve million, two hundred twenty-three thousand, one hundred eleven".