1230340143 has 8 divisors (see below), whose sum is σ = 1657365808. Its totient is φ = 811770624.

The previous prime is 1230340141. The next prime is 1230340147. The reversal of 1230340143 is 3410430321.

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

It is not a de Polignac number, because 1230340143 - 2¹ = 1230340141 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 (1230340141) 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 in 7 ways as a sum of consecutive naturals, for example, 2113696 + ... + 2114277.

It is an arithmetic number, because the mean of its divisors is an integer number (207170726).

Almost surely, 2^1230340143 is an apocalyptic number.

1230340143 is a deficient number, since it is larger than the sum of its proper divisors (427025665).

1230340143 is an equidigital number, since it uses as much as digits as its factorization.

1230340143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228073.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1230340143 is about 35076.2047975547. The cubic root of 1230340143 is about 1071.5400256958.

Adding to 1230340143 its reverse (3410430321), we get a palindrome (4640770464).

The spelling of 1230340143 in words is "one billion, two hundred thirty million, three hundred forty thousand, one hundred forty-three".