1213333245245 has 32 divisors (see below), whose sum is σ = 1625694744960. Its totient is φ = 861694525440.

The previous prime is 1213333245217. The next prime is 1213333245251. The reversal of 1213333245245 is 5425423333121.

It is a de Polignac number, because none of the positive numbers 2^k-1213333245245 is a prime.

It is a super-2 number, since 2×1213333245245² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213333245199 and 1213333245208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10083677 + ... + 10203293.

It is an arithmetic number, because the mean of its divisors is an integer number (50802960780).

Almost surely, 2^{1213333245245} is an apocalyptic number.

It is an amenable number.

1213333245245 is a deficient number, since it is larger than the sum of its proper divisors (412361499715).

1213333245245 is a wasteful number, since it uses less digits than its factorization.

1213333245245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123965.

The product of its digits is 259200, while the sum is 38.

Adding to 1213333245245 its reverse (5425423333121), we get a palindrome (6638756578366).

The spelling of 1213333245245 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, two hundred forty-five thousand, two hundred forty-five".