1201112331 has 8 divisors (see below), whose sum is σ = 1602501120. Its totient is φ = 800232552.

The previous prime is 1201112299. The next prime is 1201112333. The reversal of 1201112331 is 1332111021.

It is a happy number.

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

It is not a de Polignac number, because 1201112331 - 2⁵ = 1201112299 is a prime.

It is a super-2 number, since 2×1201112331² = 2885341663360507122, 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 1201112331.

It is not an unprimeable number, because it can be changed into a prime (1201112333) 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, 121711 + ... + 131208.

It is an arithmetic number, because the mean of its divisors is an integer number (200312640).

Almost surely, 2^1201112331 is an apocalyptic number.

1201112331 is a deficient number, since it is larger than the sum of its proper divisors (401388789).

1201112331 is a wasteful number, since it uses less digits than its factorization.

1201112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254505.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1201112331 is about 34657.0675476157. The cubic root of 1201112331 is about 1062.9868089140.

Adding to 1201112331 its reverse (1332111021), we get a palindrome (2533223352).

It can be divided in two parts, 12011 and 12331, that added together give a palindrome (24342).

The spelling of 1201112331 in words is "one billion, two hundred one million, one hundred twelve thousand, three hundred thirty-one".