1200401043 has 8 divisors (see below), whose sum is σ = 1605148608. Its totient is φ = 797960424.

The previous prime is 1200401039. The next prime is 1200401053. The reversal of 1200401043 is 3401040021.

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

It is not a de Polignac number, because 1200401043 - 2² = 1200401039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200401023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575521 + ... + 577602.

It is an arithmetic number, because the mean of its divisors is an integer number (200643576).

Almost surely, 2^1200401043 is an apocalyptic number.

1200401043 is a deficient number, since it is larger than the sum of its proper divisors (404747565).

1200401043 is a wasteful number, since it uses less digits than its factorization.

1200401043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153473.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1200401043 is about 34646.8042249209. The cubic root of 1200401043 is about 1062.7769370475.

Adding to 1200401043 its reverse (3401040021), we get a palindrome (4601441064).

The spelling of 1200401043 in words is "one billion, two hundred million, four hundred one thousand, forty-three".