1231033273 has 2 divisors, whose sum is σ = 1231033274. Its totient is φ = 1231033272.

The previous prime is 1231033261. The next prime is 1231033333. The reversal of 1231033273 is 3723301321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1217172544 + 13860729 = 34888^2 + 3723^2 .

It is an emirp because it is prime and its reverse (3723301321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231033273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231033073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615516636 + 615516637.

It is an arithmetic number, because the mean of its divisors is an integer number (615516637).

Almost surely, 2^1231033273 is an apocalyptic number.

It is an amenable number.

1231033273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231033273 is an equidigital number, since it uses as much as digits as its factorization.

1231033273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 1231033273 is about 35086.0837512539. The cubic root of 1231033273 is about 1071.7412104691.

Adding to 1231033273 its reverse (3723301321), we get a palindrome (4954334594).

The spelling of 1231033273 in words is "one billion, two hundred thirty-one million, thirty-three thousand, two hundred seventy-three".