1201144311 has 12 divisors (see below), whose sum is σ = 1737382192. Its totient is φ = 799657056.

The previous prime is 1201144303. The next prime is 1201144313. The reversal of 1201144311 is 1134411021.

1201144311 is a `hidden beast` number, since 120 + 114 + 431 + 1 = 666.

It is not a de Polignac number, because 1201144311 - 2³ = 1201144303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201144313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85246 + ... + 98331.

Almost surely, 2^1201144311 is an apocalyptic number.

1201144311 is a deficient number, since it is larger than the sum of its proper divisors (536237881).

1201144311 is a wasteful number, since it uses less digits than its factorization.

1201144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184310 (or 184307 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1201144311 is about 34657.5289222991. The cubic root of 1201144311 is about 1062.9962429515.

Adding to 1201144311 its reverse (1134411021), we get a palindrome (2335555332).

The spelling of 1201144311 in words is "one billion, two hundred one million, one hundred forty-four thousand, three hundred eleven".