203143214212891 has 2 divisors, whose sum is σ = 203143214212892. Its totient is φ = 203143214212890.

The previous prime is 203143214212859. The next prime is 203143214213081. The reversal of 203143214212891 is 198212412341302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203143214212891 - 2⁵ = 203143214212859 is a prime.

It is not a weakly prime, because it can be changed into another prime (203143214212691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571607106445 + 101571607106446.

It is an arithmetic number, because the mean of its divisors is an integer number (101571607106446).

Almost surely, 2^{203143214212891} is an apocalyptic number.

203143214212891 is a deficient number, since it is larger than the sum of its proper divisors (1).

203143214212891 is an equidigital number, since it uses as much as digits as its factorization.

203143214212891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 203143214212891 in words is "two hundred three trillion, one hundred forty-three billion, two hundred fourteen million, two hundred twelve thousand, eight hundred ninety-one".