1206643100231 has 2 divisors, whose sum is σ = 1206643100232. Its totient is φ = 1206643100230.

The previous prime is 1206643100219. The next prime is 1206643100251. The reversal of 1206643100231 is 1320013466021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1206643100231 - 2¹⁸ = 1206642838087 is a prime.

It is a super-2 number, since 2×1206643100231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1206643100194 and 1206643100203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1206643100251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603321550115 + 603321550116.

It is an arithmetic number, because the mean of its divisors is an integer number (603321550116).

Almost surely, 2^{1206643100231} is an apocalyptic number.

1206643100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206643100231 is an equidigital number, since it uses as much as digits as its factorization.

1206643100231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 1206643100231 its reverse (1320013466021), we get a palindrome (2526656566252).

The spelling of 1206643100231 in words is "one trillion, two hundred six billion, six hundred forty-three million, one hundred thousand, two hundred thirty-one".