1230143473 has 4 divisors (see below), whose sum is σ = 1324769908. Its totient is φ = 1135517040.

The previous prime is 1230143471. The next prime is 1230143483. The reversal of 1230143473 is 3743410321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 691532209 + 538611264 = 26297^2 + 23208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230143473 - 2¹ = 1230143471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230143471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47313198 + ... + 47313223.

It is an arithmetic number, because the mean of its divisors is an integer number (331192477).

Almost surely, 2^1230143473 is an apocalyptic number.

1230143473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1230143473 is a deficient number, since it is larger than the sum of its proper divisors (94626435).

1230143473 is an equidigital number, since it uses as much as digits as its factorization.

1230143473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94626434.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 1230143473 is about 35073.4012180171. The cubic root of 1230143473 is about 1071.4829273918.

Adding to 1230143473 its reverse (3743410321), we get a palindrome (4973553794).

The spelling of 1230143473 in words is "one billion, two hundred thirty million, one hundred forty-three thousand, four hundred seventy-three".