1213113352032 has 144 divisors (see below), whose sum is σ = 3601742796288. Its totient is φ = 386579086080.

The previous prime is 1213113352027. The next prime is 1213113352039. The reversal of 1213113352032 is 2302533113121.

1213113352032 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 1 + 133 + 520 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1213113351987 and 1213113352005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213113352039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12344563 + ... + 12442445.

It is an arithmetic number, because the mean of its divisors is an integer number (25012102752).

Almost surely, 2^{1213113352032} is an apocalyptic number.

1213113352032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213113352032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1800871398144).

1213113352032 is an abundant number, since it is smaller than the sum of its proper divisors (2388629444256).

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

1213113352032 is a wasteful number, since it uses less digits than its factorization.

1213113352032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99793 (or 99782 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 1213113352032 its reverse (2302533113121), we get a palindrome (3515646465153).

The spelling of 1213113352032 in words is "one trillion, two hundred thirteen billion, one hundred thirteen million, three hundred fifty-two thousand, thirty-two".