231241203169 has 2 divisors, whose sum is σ = 231241203170. Its totient is φ = 231241203168.

The previous prime is 231241203133. The next prime is 231241203173. The reversal of 231241203169 is 961302142132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197122680225 + 34118522944 = 443985^2 + 184712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231241203169 is a prime.

It is a super-2 number, since 2×231241203169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231241203469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115620601584 + 115620601585.

It is an arithmetic number, because the mean of its divisors is an integer number (115620601585).

Almost surely, 2^231241203169 is an apocalyptic number.

It is an amenable number.

231241203169 is a deficient number, since it is larger than the sum of its proper divisors (1).

231241203169 is an equidigital number, since it uses as much as digits as its factorization.

231241203169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 231241203169 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred three thousand, one hundred sixty-nine".