1232143001 has 4 divisors (see below), whose sum is σ = 1238397732. Its totient is φ = 1225888272.

The previous prime is 1232142997. The next prime is 1232143007. The reversal of 1232143001 is 1003412321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1003412321 = 28051 ⋅35771.

It can be written as a sum of positive squares in 2 ways, for example, as 610139401 + 622003600 = 24701^2 + 24940^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232143001 - 2² = 1232142997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232143007) 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, 3127070 + ... + 3127463.

It is an arithmetic number, because the mean of its divisors is an integer number (309599433).

Almost surely, 2^1232143001 is an apocalyptic number.

It is an amenable number.

1232143001 is a deficient number, since it is larger than the sum of its proper divisors (6254731).

1232143001 is an equidigital number, since it uses as much as digits as its factorization.

1232143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254730.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1232143001 is about 35101.8945500097. The cubic root of 1232143001 is about 1072.0631579078.

Adding to 1232143001 its reverse (1003412321), we get a palindrome (2235555322).

The spelling of 1232143001 in words is "one billion, two hundred thirty-two million, one hundred forty-three thousand, one".