1230011231 has 2 divisors, whose sum is σ = 1230011232. Its totient is φ = 1230011230.

The previous prime is 1230011213. The next prime is 1230011243. The reversal of 1230011231 is 1321100321.

Together with previous prime (1230011213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230011231 - 2¹⁴ = 1229994847 is a prime.

It is a super-2 number, since 2×1230011231² = 3025855256772270722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230011261) 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, 615005615 + 615005616.

It is an arithmetic number, because the mean of its divisors is an integer number (615005616).

Almost surely, 2^1230011231 is an apocalyptic number.

1230011231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230011231 is an equidigital number, since it uses as much as digits as its factorization.

1230011231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1230011231 is about 35071.5159495566. The cubic root of 1230011231 is about 1071.4445307532. Note that the first 3 decimals are identical.

Adding to 1230011231 its reverse (1321100321), we get a palindrome (2551111552).

The spelling of 1230011231 in words is "one billion, two hundred thirty million, eleven thousand, two hundred thirty-one".