1200143031 has 8 divisors (see below), whose sum is σ = 1601407344. Its totient is φ = 799487040.

The previous prime is 1200143023. The next prime is 1200143053. The reversal of 1200143031 is 1303410021.

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

It is not a de Polignac number, because 1200143031 - 2³ = 1200143023 is a prime.

It is a super-2 number, since 2×1200143031² = 2880686589715733922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200143031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200141031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147456 + ... + 155381.

It is an arithmetic number, because the mean of its divisors is an integer number (200175918).

Almost surely, 2^1200143031 is an apocalyptic number.

1200143031 is a deficient number, since it is larger than the sum of its proper divisors (401264313).

1200143031 is a wasteful number, since it uses less digits than its factorization.

1200143031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304161.

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

The square root of 1200143031 is about 34643.0805645225. The cubic root of 1200143031 is about 1062.7007878158.

Adding to 1200143031 its reverse (1303410021), we get a palindrome (2503553052).

The spelling of 1200143031 in words is "one billion, two hundred million, one hundred forty-three thousand, thirty-one".