1201232333231 has 16 divisors (see below), whose sum is σ = 1406390841408. Its totient is φ = 1004464800000.

The previous prime is 1201232333207. The next prime is 1201232333233. The reversal of 1201232333231 is 1323332321021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201232333231 is a prime.

It is a super-2 number, since 2×1201232333231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201232333231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201232333233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6364781 + ... + 6550793.

It is an arithmetic number, because the mean of its divisors is an integer number (87899427588).

Almost surely, 2^{1201232333231} is an apocalyptic number.

1201232333231 is a deficient number, since it is larger than the sum of its proper divisors (205158508177).

1201232333231 is a wasteful number, since it uses less digits than its factorization.

1201232333231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208562.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1201232333231 its reverse (1323332321021), we get a palindrome (2524564654252).

The spelling of 1201232333231 in words is "one trillion, two hundred one billion, two hundred thirty-two million, three hundred thirty-three thousand, two hundred thirty-one".