1231333213200 has 60 divisors (see below), whose sum is σ = 3944370730128. Its totient is φ = 328355523200.

The previous prime is 1231333213193. The next prime is 1231333213213. The reversal of 1231333213200 is 23123331321.

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 513054306 + ... + 513056705.

Almost surely, 2^{1231333213200} is an apocalyptic number.

1231333213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231333213200 is an abundant number, since it is smaller than the sum of its proper divisors (2713037516928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231333213200 is a wasteful number, since it uses less digits than its factorization.

1231333213200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026111032 (or 1026111021 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1231333213200 its reverse (23123331321), we get a palindrome (1254456544521).

It can be divided in two parts, 123133 and 3213200, that added together give a palindrome (3336333).

The spelling of 1231333213200 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-three million, two hundred thirteen thousand, two hundred".