1201313311 has 8 divisors (see below), whose sum is σ = 1311004800. Its totient is φ = 1091702040.

The previous prime is 1201313303. The next prime is 1201313327. The reversal of 1201313311 is 1133131021.

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

It is not a de Polignac number, because 1201313311 - 2³ = 1201313303 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 (1201313341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13750 + ... + 50908.

It is an arithmetic number, because the mean of its divisors is an integer number (163875600).

Almost surely, 2^1201313311 is an apocalyptic number.

1201313311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1201313311 is a deficient number, since it is larger than the sum of its proper divisors (109691489).

1201313311 is a wasteful number, since it uses less digits than its factorization.

1201313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40109.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1201313311 is about 34659.9669792110. The cubic root of 1201313311 is about 1063.0460948410.

Adding to 1201313311 its reverse (1133131021), we get a palindrome (2334444332).

The spelling of 1201313311 in words is "one billion, two hundred one million, three hundred thirteen thousand, three hundred eleven".