1230111247 has 8 divisors (see below), whose sum is σ = 1247848976. Its totient is φ = 1212397632.

The previous prime is 1230111203. The next prime is 1230111257. The reversal of 1230111247 is 7421110321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230111247 - 2¹⁹ = 1229586959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230111257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113593 + ... + 123949.

It is an arithmetic number, because the mean of its divisors is an integer number (155981122).

Almost surely, 2^1230111247 is an apocalyptic number.

1230111247 is a deficient number, since it is larger than the sum of its proper divisors (17737729).

1230111247 is a wasteful number, since it uses less digits than its factorization.

1230111247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1230111247 is about 35072.9418070398. The cubic root of 1230111247 is about 1071.4735707839.

Adding to 1230111247 its reverse (7421110321), we get a palindrome (8651221568).

The spelling of 1230111247 in words is "one billion, two hundred thirty million, one hundred eleven thousand, two hundred forty-seven".