1200143234 has 4 divisors (see below), whose sum is σ = 1800214854. Its totient is φ = 600071616.

The previous prime is 1200143213. The next prime is 1200143257. The reversal of 1200143234 is 4323410021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4323410021 = 7 ⋅617630003.

It can be written as a sum of positive squares in only one way, i.e., 1105762009 + 94381225 = 33253^2 + 9715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300035807 + ... + 300035810.

Almost surely, 2^1200143234 is an apocalyptic number.

1200143234 is a deficient number, since it is larger than the sum of its proper divisors (600071620).

1200143234 is an equidigital number, since it uses as much as digits as its factorization.

1200143234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600071619.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1200143234 is about 34643.0834944004. The cubic root of 1200143234 is about 1062.7008477331.

Adding to 1200143234 its reverse (4323410021), we get a palindrome (5523553255).

The spelling of 1200143234 in words is "one billion, two hundred million, one hundred forty-three thousand, two hundred thirty-four".