231100069 has 2 divisors, whose sum is σ = 231100070. Its totient is φ = 231100068.

The previous prime is 231100063. The next prime is 231100073. The reversal of 231100069 is 960001132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222397569 + 8702500 = 14913^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 231100069 - 2³ = 231100061 is a prime.

It is a super-2 number, since 2×231100069² = 106814483783609522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231100061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115550034 + 115550035.

It is an arithmetic number, because the mean of its divisors is an integer number (115550035).

Almost surely, 2^231100069 is an apocalyptic number.

It is an amenable number.

231100069 is a deficient number, since it is larger than the sum of its proper divisors (1).

231100069 is an equidigital number, since it uses as much as digits as its factorization.

231100069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 231100069 is about 15201.9758255300. The cubic root of 231100069 is about 613.6678318411.

The spelling of 231100069 in words is "two hundred thirty-one million, one hundred thousand, sixty-nine".