1200231255 has 8 divisors (see below), whose sum is σ = 1920370032. Its totient is φ = 640123328.

The previous prime is 1200231251. The next prime is 1200231281. The reversal of 1200231255 is 5521320021.

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 1200231255 - 2² = 1200231251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200231251) 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, 40007694 + ... + 40007723.

It is an arithmetic number, because the mean of its divisors is an integer number (240046254).

Almost surely, 2^1200231255 is an apocalyptic number.

1200231255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1200231255 is a deficient number, since it is larger than the sum of its proper divisors (720138777).

1200231255 is an equidigital number, since it uses as much as digits as its factorization.

1200231255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80015425.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1200231255 is about 34644.3538689929. The cubic root of 1200231255 is about 1062.7268273279.

Adding to 1200231255 its reverse (5521320021), we get a palindrome (6721551276).

It can be divided in two parts, 120023 and 1255, that added together give a triangular number (121278 = T₄₉₂).

The spelling of 1200231255 in words is "one billion, two hundred million, two hundred thirty-one thousand, two hundred fifty-five".