1553213343213 has 40 divisors (see below), whose sum is σ = 2681488434240. Its totient is φ = 877577976000.

The previous prime is 1553213343211. The next prime is 1553213343239. The reversal of 1553213343213 is 3123433123551.

1553213343213 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 213 + 3 + 432 + 1 + 3 = 666.

It is not a de Polignac number, because 1553213343213 - 2¹ = 1553213343211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553213343211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15339163 + ... + 15440088.

It is an arithmetic number, because the mean of its divisors is an integer number (67037210856).

Almost surely, 2^{1553213343213} is an apocalyptic number.

It is an amenable number.

1553213343213 is a deficient number, since it is larger than the sum of its proper divisors (1128275091027).

1553213343213 is an equidigital number, since it uses as much as digits as its factorization.

1553213343213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30779359 (or 30779350 counting only the distinct ones).

The product of its digits is 97200, while the sum is 36.

Adding to 1553213343213 its reverse (3123433123551), we get a palindrome (4676646466764).

The spelling of 1553213343213 in words is "one trillion, five hundred fifty-three billion, two hundred thirteen million, three hundred forty-three thousand, two hundred thirteen".