1230001143 has 16 divisors (see below), whose sum is σ = 1906056960. Its totient is φ = 690944256.

The previous prime is 1230001141. The next prime is 1230001147. The reversal of 1230001143 is 3411000321.

It is not a de Polignac number, because 1230001143 - 2¹ = 1230001141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230001141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495130 + ... + 497607.

It is an arithmetic number, because the mean of its divisors is an integer number (119128560).

Almost surely, 2^1230001143 is an apocalyptic number.

1230001143 is a deficient number, since it is larger than the sum of its proper divisors (676055817).

1230001143 is an equidigital number, since it uses as much as digits as its factorization.

1230001143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992806.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1230001143 is about 35071.3721288461. The cubic root of 1230001143 is about 1071.4416015761.

Adding to 1230001143 its reverse (3411000321), we get a palindrome (4641001464).

The spelling of 1230001143 in words is "one billion, two hundred thirty million, one thousand, one hundred forty-three".