1213333120413 has 16 divisors (see below), whose sum is σ = 1875684051840. Its totient is φ = 773719670592.

The previous prime is 1213333120357. The next prime is 1213333120457. The reversal of 1213333120413 is 3140213333121.

1213333120413 is a `hidden beast` number, since 1 + 2 + 1 + 333 + 312 + 0 + 4 + 13 = 666.

It is not a de Polignac number, because 1213333120413 - 2¹⁰ = 1213333119389 is a prime.

It is a super-2 number, since 2×1213333120413² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213333120913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976918156 + ... + 976919397.

It is an arithmetic number, because the mean of its divisors is an integer number (117230253240).

Almost surely, 2^{1213333120413} is an apocalyptic number.

It is an amenable number.

1213333120413 is a deficient number, since it is larger than the sum of its proper divisors (662350931427).

1213333120413 is a wasteful number, since it uses less digits than its factorization.

1213333120413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953837585 (or 1953837579 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 1213333120413 its reverse (3140213333121), we get a palindrome (4353546453534).

The spelling of 1213333120413 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, one hundred twenty thousand, four hundred thirteen".