1201312333 has 12 divisors (see below), whose sum is σ = 1357391520. Its totient is φ = 1060687056.

The previous prime is 1201312331. The next prime is 1201312421. The reversal of 1201312333 is 3332131021.

It is not a de Polignac number, because 1201312333 - 2¹ = 1201312331 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201312333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201312331) 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, 150643 + ... + 158416.

It is an arithmetic number, because the mean of its divisors is an integer number (113115960).

Almost surely, 2^1201312333 is an apocalyptic number.

1201312333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1201312333 is a deficient number, since it is larger than the sum of its proper divisors (156079187).

1201312333 is a wasteful number, since it uses less digits than its factorization.

1201312333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309108 (or 309095 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1201312333 is about 34659.9528707123. The cubic root of 1201312333 is about 1063.0458063624.

Adding to 1201312333 its reverse (3332131021), we get a palindrome (4533443354).

It can be divided in two parts, 12013123 and 33, that added together give a square (12013156 = 3466²).

The spelling of 1201312333 in words is "one billion, two hundred one million, three hundred twelve thousand, three hundred thirty-three".