1200234431 has 8 divisors (see below), whose sum is σ = 1309598928. Its totient is φ = 1090912000.

The previous prime is 1200234421. The next prime is 1200234443. The reversal of 1200234431 is 1344320021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200234431 - 2⁶ = 1200234367 is a prime.

It is a super-2 number, since 2×1200234431² = 2881125378715787522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200234401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96911 + ... + 108591.

It is an arithmetic number, because the mean of its divisors is an integer number (163699866).

Almost surely, 2^1200234431 is an apocalyptic number.

1200234431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200234431 is a deficient number, since it is larger than the sum of its proper divisors (109364497).

1200234431 is a wasteful number, since it uses less digits than its factorization.

1200234431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033.

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

The square root of 1200234431 is about 34644.3997061574. The cubic root of 1200234431 is about 1062.7277647077.

Adding to 1200234431 its reverse (1344320021), we get a palindrome (2544554452).

The spelling of 1200234431 in words is "one billion, two hundred million, two hundred thirty-four thousand, four hundred thirty-one".