1213333131000 has 128 divisors (see below), whose sum is σ = 3877931453760. Its totient is φ = 315663872000.

The previous prime is 1213333130909. The next prime is 1213333131001. The reversal of 1213333131000 is 1313333121.

It is a super-2 number, since 2×1213333131000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213333131001) 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 31 ways as a sum of consecutive naturals, for example, 4809249 + ... + 5055248.

Almost surely, 2^{1213333131000} is an apocalyptic number.

1213333131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213333131000 is an abundant number, since it is smaller than the sum of its proper divisors (2664598322760).

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

1213333131000 is a wasteful number, since it uses less digits than its factorization.

1213333131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864562 (or 9864548 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1213333131000 its reverse (1313333121), we get a palindrome (1214646464121).

The spelling of 1213333131000 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, one hundred thirty-one thousand".